Chemical compound, method for the production thereof and its use in catalyst systems for producing polyolefins

ABSTRACT

The invention relates to a chemical compound of formula (I), wherein M 1  represents an element selected from main groups II, III or IV of the periodic table of elements; x is equal to 1, 2, 3 or 4; y is equal to 2, 3 or 4, and; A represents a cation of main group V of the periodic table of elements; R 1  is the same or different and represents a branched or unbranched linear or cyclic C 1 -C 40  group that contains carbon; R 2  is the same or different and represents a branched or unbranched linear or cyclic C 1 -C 40  group that contains carbon; R 3  represents a branched or unbranched linear or cyclic C 1 -C 40  group that contains carbon, and; R 4  represents a hydrogen atom; whereby R 2  and R 3  are always different from one another.

[0001] The present invention relates to chemical compounds which have anionic structure and in combination with an organometallic transitionmetal compound form a catalyst system which is advantageously used forthe polymerization of olefins.

[0002] Ziegler-type catalysts based on angled metallocenes of metals oftransition group IV form a new generation of industrially usefulcatalysts for the polymerization of α-olefins (H. H. Brintzinger, D.Fischer, R. Mülhaupt, R. Rieger, R. Waymouth, Angew. Chem. 1995, 107,1255-1283).

[0003] In order to obtain an active catalyst system, the metallocenecomplex is treated with a large excess of methylaluminoxane (MAO) (H.Sinn, W. Kaminsky, Adv. Organomet. Chem., 1980, 18, 99). Apart from thehigh cocatalyst costs, this has the disadvantage of a high aluminumcontent in the polymer obtained. For this reason, new activation methodswhich make do without a superstoichiometric amount of activator havebeen developed.

[0004] The synthesis of “cation-like” metallocene polymerizationcatalysts is described in J. Am. Chem. Soc. 1991, 113, 3623. Here, thealkyl group is abstracted from an alkyl-metallocene compound by means oftrispentafluorophenylborane which is used in a stoichiometric amountrelative to the metallocene.

[0005] EP-A-0,427,697 claims this synthetic principle and acorresponding catalyst system comprising an uncharged metallocenespecies (e.g. Cp₂ZrMe₂), a Lewis acid (e.g. B(C₆F₅)₃) and aluminumalkyls. A method of preparing salts of the formula LMX⁺ XA⁻ according tothe above-described principle is claimed in EP-A-0,520,732.

[0006] EP-A-0,558,158 describes zwitterionic catalyst systems which areprepared from dialkyl-metallocene compounds and salts of the formula[R₃NH]⁺[BPh₄]⁻. The reaction of such a salt with, for example, Cp₂*ZrMe₂results in protolysis with elimination of methane to give amethyl-zirconocene cation as an intermediate. This reacts by C—Hactivation to give the zwitterion Cp₂*Zr⁺-(m-C₆H₄)—BPh₃ ⁻. Here, the Zratom is covalently bound to a carbon atom of the phenyl ring and isstabilized by an agostic hydrogen bond.

[0007] U.S. Pat. No. 5,348,299 claims corresponding systems and usesdimethylanilinium salts with perfluorinated tetraphenylborates.

[0008] Apart from the activating action of the borate salts, theirligand sphere also exercises an important effect on the reactionequilibrium. Ligands which are too bulky substantially preventdimerization of the metallocenium fragments and thus displace theequilibrium in the direction of the catalytically active species. Themononuclear borate anions described hitherto have four aryl ligands andcan have an influence on the reaction equilibrium by means of theincorporation of bulky groups on the ligand (WO 95/24268). Disadvantagesof these systems are the complicated syntheses and the extremesensitivity of the resulting metallocenium complexes.

[0009] In addition, most of the starting materials are-suspected ofbeing carcinogenic, teratogenic or extremely toxic. This cannot be ruledout for the resulting products. Furthermore, the sometimes extremeinsolubility of the ammonium tetraphenylborates described hitherto leadsto very incompletely reacted catalyst systems. This has direct effectson the productivities of the catalyst systems based on the amount ofmetallocene and cocatalyst used. This important criterion leads to highcosts and thus to only limited commercial utilization.

[0010] WO 97/35893 describes highly soluble activators for olefinpolymerization catalysts which are particularly suitable for solutionpolymerization processes. However, systems which are particularly wellsuited to solution polymerization processes are generally not suitablefor supported catalysts because of the good solubility of thecomponents.

[0011] It is an object of the present invention to provide chemicalcompounds which are suitable as activators for catalyst systems forpreparing polyolefins but do not suffer from the abovementioneddisadvantages and, in particular, are not problematical in terms ofhealth and have a solubility which is sufficient for application to asupport but is not so high that the supported catalyst loses activecomponent in the polymerization process.

[0012] We have found that this object is achieved by a chemical compoundof the formula I,

[0013] where

[0014] M¹ is an element of main group II, III or IV of the PeriodicTable of the Elements,

[0015] x is 1, 2, 3 or 4,

[0016] y is 2, 3 or 4, and

[0017] A is a cation of main group V of the Periodic Table of theElements,

[0018] R¹ are identical or different and are each a branched orunbranched, linear or cyclic C₁-C₄₀ group,

[0019] R² are identical or different and are each a branched orunbranched, linear or cyclic C₁-C₄₀ group,

[0020] R³ is a branched or unbranched, linear or cyclic C₁-C₄₀ group and

[0021] R⁴ is a hydrogen atom,

[0022] where R² and R³ are always different from one another

[0023] and the compounds

[0024] decyldi(methyl)ammonium tetrakis(pentafluorophenyl)borate,

[0025] dodecyldi(methyl)ammonium tetrakis(pentafluorophenyl)borate,

[0026] tetradecyldi(methyl)ammonium tetrakis(pentafluorophenyl)borate,

[0027] hexadecyldi(methyl)ammonium tetrakis(pentafluorophenyl)borate,

[0028] octadecyldi(methyl)ammonium tetrakis(pentafluorophenyl)borate,

[0029] eicosyldi(methyl)ammonium tetrakis(pentafluorophenyl)borate,

[0030] methyldi(decyl)ammonium tetrakis(pentafluorophenyl)borate,

[0031] methyldi(dodecyl)ammonium tetrakis(pentafluorophenyl)borate,

[0032] methyldi(tetradecyl)ammonium tetrakis(pentafluorophenyl)borate,

[0033] methyldi(hexadecyl)ammonium tetrakis(pentafluorophenyl)borate,

[0034] methyldi(octadecyl)ammonium tetrakis(pentafluorophenyl)borate,

[0035] methyldi(eicosyl)ammonium tetrakis(pentafluorophenyl)borate,

[0036] decyldi(n-butyl)ammonium tetrakis(pentafluorophenyl)borate,

[0037] dodecyldi(decyl)ammonium tetrakis(pentafluorophenyl)borate,

[0038] octadecyldi(decyl)ammonium tetrakis(pentafluorophenyl)borate,

[0039] N,N-didodecylanilinium tetrakis(pentafluorophenyl)borate,

[0040] N-methyl-N-dodecylanilinium tetrakis(pentafluorophenyl)borate,

[0041] N,N-di(octadecyl)(2,4,6-trimethylaniliniumtetrakis(pentafluorophenyl)borate,

[0042] cyclohexyldi(dodecyl)ammonium tetrakis(pentafluorophenyl)borate,

[0043] N,N-dimethylanilinium tetra(phenyl)borate,

[0044] N,N-diethylanilinium tetra(phenyl)borate,

[0045] N,N-2,4,6-pentamethylanilinium tetra(phenyl)borate and

[0046] dimethylanilinium tetrakis(pentafluorophenyl)borate

[0047] are excepted.

[0048] Preferably, at least one radical R², R³ is a branched or cyclicgroup having from 3 to 40 carbon atoms, in particular from 6 to 30carbon atoms.

[0049] Preference is given to compounds which conform to the formula(II),

[0050] in which

[0051] M¹ is boron or aluminum,

[0052] x is 4,

[0053] y is 2 and

[0054] A is a cation of main group V of the Periodic Table of theElements,

[0055] R¹ are each C₆-C₄₀-haloaryl, C₆-C₄₀-aryloxy, C₇-C₄₀-arylalkyl,C₇-C₄₀-haloarylalkyl, C₇-C₄₀-haloalkylaryl or C₄-C₄₀-cycloalkyl,

[0056] R² are each C₁-C₂₀-alkyl, C₁-C₂₀-haloalkyl, C₁-C₁₀-alkoxy,C₆-C₄₀-haloaryl, C₇-C₄₀-alkylaryl, C₇-C₄₀-arylalkyl,C₇-C₄₀-haloarylalkyl, C₇-C₄₀-haloalkylaryl or substituted orunsubstituted C₄-C₄₀-cycloalkyl,

[0057] R³ is C₁-C₂₀-alkyl, C₁-C₂₀-haloalkyl, C₁-C₁₀-alkoxy,C₆-C₄₀-haloaryl, C₇-C₄₀-alkylaryl, C₇-C₄₀-arylalkyl,C₇-C₄₀-haloarylalkyl, C₇-C₄₀-haloalkylaryl or substituted orunsubstituted C₄-C₄₀-cycloalkyl,

[0058] R⁴ is a hydrogen atom,

[0059] where R² and R³ always have to be different from one another.

[0060] Particular preference is given to compounds in which M¹=boron andwhich have the formula (IIa),

[0061] in which

[0062] x is 4,

[0063] y is 2 and

[0064] A is nitrogen and

[0065] R¹ are each C₆-C₄₀-haloaryl, C₆-C₄O-aryloxy, C₇-C₄₀-arylalkyl,C₇-C₄₀-haloarylalkyl, C₇-C₄₀-haloalkylaryl or C₄-C₄₀-cycloalkyl,

[0066] R² are each C₁-C₆-alkyl and

[0067] R³ is C₃-C₉-cycloalkyl which may be substituted by C₁-C₂₀-alkyl,in particular C₁-C₅-alkyl, C₁-C₂₀-haloalkyl, C₁-C₁₀-alkoxy,C₆-C₄₀-haloaryl, C₇-C₄₀-alkylaryl, C₇-C₄₀-arylalkyl,C₇-C₄₀-haloarylalkyl or C₇-C₄₀-haloalkylaryl, or is C₇-C₂₀-alkylaryl orC₇-C₂₀-arylalkyl and R⁴ is a hydrogen atom,

[0068] where R² and R³ always have to be different from one another.

[0069] Particularly preferred but nonlimiting examples-of novel chemicalcompounds of the formulae (I) and (II) are:

[0070] N,N-dimethylcyclohexylammonium tetrakis(pentafluorophenyl)borate,

[0071] N,N-dimethylcyclohexylammoniumtetrakis(2,3,4,6-tetrafluorophenyl)borate,

[0072] N,N-dimethylcyclohexylammoniumtetrakis(2,3,5,6-tetrafluorophenyl)borate,

[0073] N,N-dimethylcyclohexylammoniumtetrakis(2,3,5-trifluorophenyl)borate,

[0074] N,N-dimethylcyclohexylammoniumtetrakis(2,3,6-trifluorophenyl)borate,

[0075] N,N-dimethylcyclohexylammoniumtetrakis(1,3-difluorophenyl)borate,

[0076] N,N-dimethylcyclohexylammoniumtetrakis(2,3,5,6-tetrafluoro-4-methylphenyl)borate,

[0077] N,N-dimethylcyclohexylammoniumtetrakis(2,3,4,6-tetrafluoro-5-methylphenyl)borate,

[0078] N,N-dimethylcyclohexylammoniumtetrakis(2,3,5-trifluorophenyl)borate,

[0079] N,N-dimethylcyclohexylammoniumtetrakis(2,4,5-trifluoro-6-methylphenyl)borate,

[0080] N,N-dimethylcyclohexylammoniumtetrakis(2,3,6-trifluoro-4-methylphenyl)borate,

[0081] N,N-dimethylcyclohexylammoniumtetrakis(2,4,6-trifluoro-3-methylphenyl)borate,

[0082] N,N-dimethylcyclohexylammoniumtetrakis(2,6-difluoro-3-methylphenyl)borate,

[0083] N,N-dimethylcyclohexylammoniumtetrakis(2,4-difluoro-5-methylphenyl)borate,

[0084] N,N-dimethylcyclohexylammoniumtetrakis(3,5-difluoro-2-methylphenyl)borate,

[0085] N,N-dimethylcyclohexylammoniumtetrakis(4-methoxy-2,3,5,6-tetrafluorophenyl)borate,

[0086] N,N-dimethylcyclohexylammoniumtetrakis(3-methoxy-2,4,5,6-tetrafluorophenyl)borate,

[0087] N,N-dimethylcyclohexylammoniumtetrakis(2-methoxy-3,4,5,6-tetrafluorophenyl)borate,

[0088] N,N-diethylcyclohexylammonium tetrakis(pentafluorophenyl)borate,

[0089] N,N-diethylcyclohexylammoniumtetrakis(2,3,4,6-tetrafluorophenyl)borate,

[0090] N,N-diethylcyclohexylammoniumtetrakis(2,3,5,6-tetrafluorophenyl)borate,

[0091] N,N-diethylcyclohexylammoniumtetrakis(2,3,5-trifluorophenyl)borate,

[0092] N,N-diethylcyclohexylammoniumtetrakis(2,3,6-trifluorophenyl)borate,

[0093] N,N-diethylcyclohexylammonium tetrakis(1,3-difluorophenyl)borate,

[0094] N,N-diethylcyclohexylammoniumtetrakis(2,3,5,6-tetrafluoro-4-methylphenyl)borate,

[0095] N,N-diethylcyclohexylammoniumtetrakis(2,3,4,6-tetrafluoro-5-methylphenyl)borate,

[0096] N,N-diethylcyclohexylammoniumtetrakis(2,3,5-trifluorophenyl)borate,

[0097] N,N-diethylcyclohexylammoniumtetrakis(2,4,5-trifluoro-6-methylphenyl)borate,

[0098] N,N-diethylcyclohexylammoniumtetrakis(2,3,6-trifluoro-4-methylphenyl)borate,

[0099] N,N-diethylcyclohexylammoniumtetrakis(2,4,6-trifluoro-3-methylphenyl)borate,

[0100] N,N-diethylcyclohexylammoniumtetrakis(2,6-difluoro-3-methylphenyl)borate,

[0101] N,N-diethylcyclohexylammoniumtetrakis(2,4-difluoro-5-methylphenyl)borate,

[0102] N,N-diethylcyclohexylammoniumtetrakis(3,5-difluoro-2-methylphenyl)borate,

[0103] N,N-diethylcyclohexylammoniumtetrakis(4-methoxy-2,3,5,6-tetrafluorophenyl)borate,

[0104] N,N-diethylcyclohexylammoniumtetrakis(3-methoxy-2,4,5,6-tetrafluorophenyl)borate,

[0105] N,N-diethylcyclohexylammoniumtetrakis(2-methoxy-3,4,5,6-tetrafluorophenyl)borate,

[0106] N,N-diisopropylcyclohexylammoniumtetrakis(pentafluorophenyl)borate,

[0107] N,N-diisopropylcyclohexylammoniumtetrakis(2,3,4,6-tetrafluorophenyl)borate,

[0108] N,N-diisopropylcyclohexylammoniumtetrakis(2,3,5,6-tetrafluorophenyl)borate,

[0109] N,N-diisopropylcyclohexylammoniumtetrakis(2,3,5-trifluorophenyl)borate,

[0110] N,N-diisopropylcyclohexylammoniumtetrakis(2,3,6-trifluorophenyl)borate,

[0111] N,N-diisopropylcyclohexylammoniumtetrakis(1,3-difluorophenyl)borate,

[0112] N,N-diisopropylcyclohexylammoniumtetrakis(2,3,5,6-tetrafluoro-4-methylphenyl)borate,

[0113] N,N-diisopropylcyclohexylammoniumtetrakis(2,3,4,6-tetrafluoro-5-methylphenyl)borate,

[0114] N,N-diisopropylcyclohexylammoniumtetrakis(2,3,5-trifluorophenyl)borate,

[0115] N,N-diisopropylcyclohexylammoniumtetrakis(2,4,5-trifluoro-6-methylphenyl)borate,

[0116] N,N-diisopropylcyclohexylammoniumtetrakis(2,3,6-trifluoro-4-methylphenyl)borate,

[0117] N,N-diisopropylcyclohexylammoniumtetrakis(2,4,6-trifluoro-3-methylphenyl)borate,

[0118] N,N-diisopropylcyclohexylammoniumtetrakis(2,6-difluoro-3-methylphenyl)borate,

[0119] N,N-diisopropylcyclohexylammoniumtetrakis(2,4-difluoro-5-methylphenyl)borate,

[0120] N,N-diisopropylcyclohexylammoniumtetrakis(3,5-difluoro-2-methylphenyl)borate,

[0121] N,N-diisopropylcyclohexylammoniumtetrakis(4-methoxy-2,3,5,6-tetrafluorophenyl)borate,

[0122] N,N-diisopropylcyclohexylammoniumtetrakis(3-methoxy-2,4,5,6-tetrafluorophenyl)borate,

[0123] N,N-diisopropylcyclohexylammoniumtetrakis(2-methoxy-3,4,5,6-tetrafluorophenyl)borate;

[0124] N,N-diethylbenzylammonium tetrakis(pentafluorophenyl)borate,

[0125] N,N-diisopropylbenzylammonium tetrakis(pentafluorophenyl)borate,

[0126] N,N-diethylbenzylammoniumtetrakis(2,3,4,6-tetrafluorophenyl)borate,

[0127] N,N-diethylbenzylammoniumtetrakis(2,3,5,6-tetrafluorophenyl)borate,

[0128] N,N-diethylbenzylammonium tetrakis(2,3,5-trifluorophenyl)borate,

[0129] N,N-diethylbenzylammonium tetrakis(2,3,6-trifluorophenyl)borate,

[0130] N,N-diethylbenzylammonium tetrakis(1,3-difluorophenyl)borate,

[0131] N,N-diethylbenzylammoniumtetrakis(2,3,5,6-tetrafluoro-4-methylphenyl)borate,

[0132] N,N-diethylbenzylammoniumtetrakis(2,3,4,6-tetrafluoro-5-methylphenyl)borate,

[0133] N,N-diethylbenzylammonium tetrakis(2,3,5-trifluorophenyl)borate,

[0134] N,N-diethylbenzylammoniumtetrakis(2,4,5-trifluoro-6-methylphenyl)borate,

[0135] N,N-diethylbenzylammoniumtetrakis(2,3,6-trifluoro-4-methylphenyl)borate,

[0136] N,N-diethylbenzylammoniumtetrakis(2,4,6-trifluoro-3-methylphenyl)borate,

[0137] N,N-diethylbenzylammoniumtetrakis(2,6-difluoro-3-methylphenyl)borate,

[0138] N,N-diethylbenzylammoniumtetrakis(2,4-difluoro-5-methylphenyl)borate,

[0139] N,N-diethylbenzylammoniumtetrakis(3,5-difluoro-2-methylphenyl)borate,

[0140] N,N-diethylbenzylammoniumtetrakis(4-methoxy-2,3,5,6-tetrafluorophenyl)borate,

[0141] N,N-diethylbenzylammoniumtetrakis(3-methoxy-2,4,5,6-tetrafluorophenyl)borate,

[0142] N,N-diethylbenzylammoniumtetrakis(2-methoxy-3,4,5,6-tetrafluorophenyl)borate

[0143] N,N-dimethylbenzylammonium tetrakis(pentafluorophenyl)borate,

[0144] N,N-dimethylbenzylammoniumtetrakis(2,3,4,6-tetrafluorophenyl)borate,

[0145] N,N-dimethylbenzylammoniumtetrakis(2,3,5,6-tetrafluorophenyl)borate,

[0146] N,N-dimethylbenzylammonium tetrakis(2,3,5-trifluorophenyl)borate,

[0147] N,N-dimethylbenzylammonium tetrakis(2,3,6-trifluorophenyl)borate,

[0148] N,N-dimethylbenzylammonium tetrakis(1,3-difluorophenyl)borate,

[0149] N,N-dimethylbenzylammoniumtetrakis(2,3,5,6-tetrafluoro-4-methylphenyl)borate,

[0150] N,N-dimethylbenzylammoniumtetrakis(2,3,4,6-tetrafluoro-5-methylphenyl)borate,

[0151] N,N-dimethylbenzylammonium tetrakis(2,3,5-trifluorophenyl)borate,

[0152] N,N-dimethylbenzylammoniumtetrakis(2,4,5-trifluoro-6-methylphenyl)borate,

[0153] N,N-dimethylbenzylammoniumtetrakis(2,3,6-trifluoro-4-methylphenyl)borate,

[0154] N,N-dimethylbenzylammoniumtetrakis(2,4,6-trifluoro-3-methylphenyl)borate,

[0155] N,N-dimethylbenzylammoniumtetrakis(2,6-difluoro-3-methylphenyl)borate,

[0156] N,N-dimethylbenzylammoniumtetrakis(2,4-difluoro-5-methylphenyl)borate,

[0157] N,N-dimethylbenzylammoniumtetrakis(3,5-difluoro-2-methylphenyl)borate,

[0158] N,N-dimethylbenzylammoniumtetrakis(4-methoxy-2,3,5,6-tetrafluorophenyl)borate,

[0159] N,N-dimethylbenzylammoniumtetrakis(3-methoxy-2,4,5,6-tetrafluorophenyl)borate,

[0160] N,N-dimethylbenzylammoniumtetrakis(2-methoxy-3,4,5,6-tetrafluorophenyl)borate

[0161] N,N-dimethylcyclohexylmethylammoniumtetrakis(pentafluorophenyl)borate

[0162] N,N-diethylcyclohexylmethylammoniumtetrakis(pentafluorophenyl)borate

[0163] N,N-diethylcyclohexylethylammoniumtetrakis(pentafluorophenyl)borate

[0164] N,N-dimethylcyclohexylethylammoniumtetrakis(pentafluorophenyl)borate

[0165] N,N-diisopropylcyclohexylmethylammoniumtetrakis(pentafluorophenyl)borate

[0166] N,N-diisopropylcyclohexylethylammoniumtetrakis(pentafluorophenyl)borate

[0167] N,N-dimethylcyclohexylpropylammoniumtetrakis(pentafluorophenyl)borate

[0168] N,N-diethylcyclohexylpropylammoniumtetrakis(pentafluorophenyl)borate

[0169] N,N-dimethylcyclohexylpropylammoniumtetrakis(pentafluorophenyl)borate

[0170] N,N-diisopropylcyclohexylpropylammoniumtetrakis(pentafluorophenyl)borate

[0171] N,N-diisobutylcyclohexylpropylammoniumtetrakis(pentafluorophenyl)borate

[0172] N,N-diethylcyclohexylbutylammoniumtetrakis(pentafluorophenyl)borate

[0173] N,N-dimethylcyclohexylbutylammoniumtetrakis(pentafluorophenyl)borate

[0174] N,N-diisopropylcyclohexylbutylammoniumtetrakis(pentafluorophenyl)borate

[0175] N,N-diisobutylcyclohexylbutylammoniumtetrakis(pentafluorophenyl)borate

[0176] N,N-diethylcyclohexylhexylammoniumtetrakis(pentafluorophenyl)borate

[0177] N,N-dimethylcyclohexylhexylammoniumtetrakis(pentafluorophenyl)borate

[0178] N,N-diisopropylcyclohexylhexylammoniumtetrakis(pentafluorophenyl)borate

[0179] N,N-diisobutylcyclohexylhexylammoniumtetrakis(pentafluorophenyl)borate

[0180] N,N-dibutylcyclohexylmethylammoniumtetrakis(pentafluorophenyl)borate

[0181] N,N-dibutylcyclohexylethylammoniumtetrakis(pentafluorophenyl)borate

[0182] N,N-dibutylcyclohexylpropylammoniumtetrakis(pentafluorophenyl)borate

[0183] N,N-dibutylcyclohexylbutylammoniumtetrakis(pentafluorophenyl)borate

[0184] N,N-dibutylcyclohexylhexylammoniumtetrakis(pentafluorophenyl)borate

[0185] N,N-dimethyl-4-methylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0186] N,N-diethyl-4-methylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0187] N,N-diisopropyl-4-methylbenzylmethylammoniumtetrakis(pentafluorophenyl)borate

[0188] N,N-diisobutyl-4-methylbenzylpropylammoniumtetrakis(pentafluorophenyl)borate

[0189] N,N-diethyl-3-methylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0190] N,N-diisopropyl-3-methylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0191] N,N-diisobutyl-3-methylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0192] N,N-diethyl-2-methylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0193] N,N-diisopropyl-2-methylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0194] N,N-diisobutyl-2-methylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0195] N,N-diethyl-3,5-dimethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0196] N,N-diisopropyl-3,5-dimethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0197] N,N-diisobutyl-3,5-dimethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0198] N,N-diethyl-2,4-dimethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0199] N,N-diisopropyl-2,4-dimethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0200] N,N-diisobutyl-2,4-dimethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0201] N,N-dimethyl-4-ethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0202] N,N-diethyl-4-ethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0203] N,N-diisopropyl-4-ethylbenzylmethylammoniumtetrakis(pentafluorophenyl)borate

[0204] N,N-diisobutyl-4-ethylbenzylpropylammoniumtetrakis(pentafluorophenyl)borate

[0205] N,N-diethyl-3-ethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0206] N,N-diisopropyl-3-propylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0207] N,N-diisobutyl-3-propylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0208] N,N-diethyl-2-propylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0209] N,N-diisopropyl-2-propylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0210] N,N-diisobutyl-2-propylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0211] N,N-diethyl-3,5-dipropylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0212] N,N-diisopropyl-3,5-dipropylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0213] N,N-diisobutyl-3,5-dipropylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0214] N,N-diethyl-2,4-dipropylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0215] N,N-diisopropyl-2,4-dipropylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0216] N,N-diisobutyl-2,4-dipropylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0217] N,N-diethyl-3-ethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0218] N,N-diisopropyl-3-ethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0219] N,N-diisobutyl-3-ethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0220] N,N-diethyl-2-ethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0221] N,N-diisopropyl-2-ethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0222] N,N-diisobutyl-2-ethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0223] N,N-diethyl-3,5-diethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0224] N,N-diisopropyl-3,5-diethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0225] N,N-diisobutyl-3,5-diethylbenzylanmoniumtetrakis(pentafluorophenyl)borate

[0226] N,N-diethyl-2,4-diethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0227] N,N-diisopropyl-2,4-diethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0228] N,N-diisobutyl-2,4-diethylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0229] N,N-diethyl-3-butylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0230] N,N-diisopropyl-3-butylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0231] N,N-diisobutyl-3-butylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0232] N,N-diethyl-2-butylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0233] N,N-diisopropyl-2-butylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0234] N,N-diisobutyl-2-butylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0235] N,N-diethyl-3,5-dibutylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0236] N,N-diisopropyl-3,5-dibutylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0237] N,N-diisobutyl-3,5-dibutylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0238] N,N-diethyl-2,4-dibutylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0239] N,N-diisopropyl-2,4-dibutylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0240] N,N-diisobutyl-2,4-dibutylbenzylammoniumtetrakis(pentafluorophenyl)borate

[0241] N,N-dimethylisopropylammonium tetrakis(pentafluorophenyl)borate,

[0242] N,N-dimethyl-2-butylammonium tetrakis(pentafluorophenyl)borate,

[0243] N,N-dimethyl-isobutylammonium tetrakis(pentafluorophenyl)borate,

[0244] N,N-dimethyl-2-methylbutylammoniumtetrakis(pentafluorophenyl)borate,

[0245] N,N-dimethylcyclopentylammoniumtetrakis(pentafluorophenyl)borate,

[0246] N,N-dimethyl-2-hexylammonium tetrakis(pentafluorophenyl)borate,

[0247] N,N-dimethyl-2-ethylbutylammoniumtetrakis(pentafluorophenyl)borate,

[0248] N,N-dimethyl-2-methylhexylammoniumtetrakis(pentafluorophenyl)borate,

[0249] N,N-dimethylmethylcyclohexylammoniumtetrakis(pentafluorophenyl)borate,

[0250] N,N-dimethyl-2-ethylhexylammoniumtetrakis(pentafluorophenyl)borate,

[0251] N,N-diethylisopropylammonium tetrakis(pentafluorophenyl)borate,

[0252] N,N-diethyl-2-butylammonium tetrakis(pentafluorophenyl)borate,

[0253] N,N-diethylisobutylammonium tetrakis(pentafluorophenyl)borate,

[0254] N,N-diethyl-2-methylbutylammoniumtetrakis(pentafluorophenyl)borate,

[0255] N,N-diethyl-2-hexylammonium tetrakis(pentafluorophenyl)borate,

[0256] N,N-diethyl-2-ethylbutylammoniumtetrakis(pentafluorophenyl)borate,

[0257] N,N-diethyl-2-methylhexylammoniumtetrakis(pentafluorophenyl)borate,

[0258] N,N-diethylmethylcyclohexylammoniumtetrakis(pentafluorophenyl)borate,

[0259] N,N-diethyl-2-ethylhexylammoniumtetrakis(pentafluorophenyl)borate,

[0260] N-methyl-N-ethylisopropylammoniumtetrakis(pentafluorophenyl)borate,

[0261] N-methyl-N-ethyl-2-butylammoniumtetrakis(pentafluorophenyl)borate,

[0262] N-methyl-N-ethylisobutylammoniumtetrakis(pentafluorophenyl)borate,

[0263] N-methyl-N-ethyl-2-methylbutylammoniumtetrakis(pentafluorophenyl)borate,

[0264] N-methyl-N-ethylcyclopentylammoniumtetrakis(pentafluorophenyl)borate,

[0265] N-methyl-N-ethyl-2-ethylbutylammoniumtetrakis(pentafluorophenyl)borate,

[0266] N-methyl-N-ethylcyclohexylammoniumtetrakis(pentafluorophenyl)borate,

[0267] N-methyl-N-ethyl-2-methylhexylammoniumtetrakis(pentafluorophenyl)borate,

[0268] N-methyl-N-ethylmethylcyclohexylammoniumtetrakis(pentafluorophenyl)borate,

[0269] N-methyl-N-ethylbenzylammonium tetrakis(pentafluorophenyl)borate,

[0270] N-methyl-N-ethyl-2-ethylhexylammoniumtetrakis(pentafluorophenyl)borate,

[0271] N-methyldiisopropylammonium tetrakis(pentafluorophenyl)borate,

[0272] N-methylbis(2-butyl)ammonium tetrakis(pentafluorophenyl)borate,

[0273] N-methylbis(isobutyl)ammonium tetrakis(pentafluorophenyl)borate

[0274] N-methylbis(2-methylbutyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0275] N-methyldicyclopentylammonium tetrakis(pentafluorophenyl)borate,

[0276] N-methylbis(2-ethylbutyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0277] N-methyldicyclohexylammonium tetrakis(pentafluorophenyl)borate,

[0278] N-methylbis(2-methylhexyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0279] N-methylbis(methylcyclohexyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0280] N-methyldibenzylammonium tetrakis(pentafluorophenyl)borate,

[0281] N-methylbis(2-ethylhexyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0282] N-methylbis(dimethylcyclohexyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0283] N-ethyldiisopropylammonium tetrakis(pentafluorophenyl)borate,

[0284] N-ethylbis(2-butyl)ammonium tetrakis(pentafluorophenyl)borate,

[0285] N-ethylbis(isobutyl)ammonium tetrakis(pentafluorophenyl)borate,

[0286] N-ethylbis(2-methylbutyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0287] N-ethyldicyclopentylammonium tetrakis(pentafluorophenyl)borate,

[0288] N-ethylbis(2-ethylbutyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0289] N-ethyldicyclohexylammonium tetrakis(pentafluorophenyl)borate,

[0290] N-ethylbis(2-methylhexyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0291] N-ethylbis(methylcyclohexyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0292] N-ethyldi(benzyl)ammonium tetrakis(pentafluorophenyl)borate,

[0293] N-ethylbis(2-ethylhexyl)ammoniumtetrakis(pentafluorophenyl)borate,

[0294] N-ethylbis(dimethylcyclohexyl)ammoniumtetrakis(pentafluorophenyl)borate.

[0295] The preparation of a novel chemical compound of the formula (I)or (II) is carried out in the manner described in the literature. Thereaction to form the ammonium hydrochloride salt is carried out byreacting the corresponding amine with hydrogen chloride. The furtherreaction to form the ammonium tetraphenylborate is carried out byreaction with the corresponding alkali metal borate or alkaline earthmetal borate.

[0296] Nonlimiting examples of amines are:

[0297] N,N-dimethylcyclohexylamine, N,N-diethylcyclohexylamine,

[0298] N,N-dimethylisopropylamine, N,N-diethylbenzylamine,

[0299] N,N-dimethyl-p-toluidine, N,N-diethyl-p-toluidine

[0300] N,N-dimethylbenzylamine, N,N-diethylisopropylamine,

[0301] N,N-diisopropylmethylamine, N,N-diisopropylethylamine,

[0302] N,N-dimethylcyclopentylamine, N,N-dimethylcycloheptenylamine,

[0303] N,N-dimethylcyclooctanylamine, N,N-dimethylnonanoylamine,

[0304] N,N-diethylcyclopentylamine, N,N-diethylcycloheptenylamine,

[0305] N,N-diethylcyclooctanylamine, N,N-diethylnonanoylamine

[0306] N-benzyldimethylamine, N-benzyldiethylamine, N-benzylbutylamine,

[0307] N-benzyl-tert-butylamine, N′-benzyl-N,N-dimethylethylenediamine,

[0308] N-benzylethylenediamine, N-benzylisopropylamine,

[0309] N-benzylmethylamine, N-benzylethylamine,

[0310] N-benzyl-1-phenylethylamine, N-benzyl-2-phenylethylamine, orN-benzylpiperazine

[0311] N,N-dimethylisopropylamine, N,N-dimethyl-2-butylamine,

[0312] N,N-dimethylisobutylamine, N,N-dimethyl-2-pentylamine,

[0313] N,N-dimethyl-3-pentylamine, N,N-dimethyl-2-methylbutylamine,

[0314] N,N-dimethyl-3-methylbutylamine, N,N-dimethylcyclopentylamine,

[0315] N,N-dimethyl-2-hexylamine, N,N-dimethyl-3-hexylamine,

[0316] N,N-dimethyl-2-methylpentylamine,

[0317] N,N-dimethyl-3-methylpentylamine,

[0318] N,N-dimethyl-4-methylpentylamine, N,N-dimethyl-2-ethylbutylamine,

[0319] N,N-dimethylcyclohexylamine, N,N-dimethyl-2-heptylamine,

[0320] N,N-dimethyl-3-heptylamine, N,N-dimethyl-4-heptylamine,

[0321] N,N-dimethyl-2-methylhexylamine, N,N-dimethyl-3-methylhexylamine,

[0322] N,N-dimethyl-4-methylhexylamine, N,N-dimethyl-5-methylhexylamine,

[0323] N,N-dimethyl-2-ethylpentylamine, N,N-dimethyl-3-ethylpentylamine,

[0324] N,N-dimethyl-2-propylbutylamine, N,N-dimethylcycloheptylamine,

[0325] N,N-dimethylmethylcyclohexylamine, N,N-dimethylbenzylamine,

[0326] N,N-dimethyl-2-octylamine, N,N-dimethyl-3-octylamine

[0327] N,N-dimethyl-4-octylamine, N,N-dimethyl-2-methylheptylamine,

[0328] N,N-dimethyl-3-methylheptylamine,

[0329] N,N-dimethyl-4-methylheptylamine,

[0330] N,N-dimethyl-5-methylheptylamine,

[0331] N,N-dimethyl-6-methylheptylamine, N,N-dimethyl-2-ethylhexylamine,

[0332] N,N-dimethyl-3-ethylhexylamine, N,N-dimethyl-4-ethylhexylamine,

[0333] N,N-dimethyl-2-propylpentylamine, N,N-dimethylcyclooctylamine,

[0334] N,N-dimethyldimethylcyclohexylamine, N,N-diethylisopropylamine,

[0335] N,N-diethyl-2-butylamine, N,N-diethylisobutylamine,

[0336] N,N-diethyl-2-pentylamine, N,N-diethyl-3-pentylamine,

[0337] N,N-diethyl-2-methylbutylamine, N,N-diethyl-3-methylbutylamine,

[0338] N,N-diethylcyclopentylamine, N,N-diethyl-2-hexylamine,

[0339] N,N-diethyl-3-hexylamine, N,N-diethyl-2-methylpentylamine,

[0340] N,N-diethyl-3-methylpentylamine, N,N-diethyl-4-methylpentylamine,

[0341] N,N-diethyl-2-ethylbutylamine, N,N-diethylcyclohexylamine,

[0342] N,N-diethyl-2-heptylamine, N,N-diethyl-3-heptylamine,

[0343] N,N-diethyl-4-heptylamine, N,N-diethyl-2-methylhexylamine,

[0344] N,N-diethyl-3-methylhexylamine, N,N-diethyl-4-methylhexylamine,

[0345] N,N-diethyl-5-methylhexylamine, N,N-diethyl-2-ethylpentylamine,

[0346] N,N-diethyl-3-ethylpentylamine, N,N-diethyl-2-propylbutylamine,

[0347] N,N-diethylcycloheptylamine, N,N-diethylmethylcyclohexylamine,

[0348] N,N-diethylbenzylamine, N,N-diethyl-2-octylamine,

[0349] N,N-diethyl-3-octylamine, N,N-diethyl-4-octylamine,

[0350] N,N-diethyl-2-methylheptylamine, N,N-diethyl-3-methylheptylamine,

[0351] N,N-diethyl-4-methylheptylamine, N,N-diethyl-5-methylheptylamine,

[0352] N,N-diethyl-6-methylheptylamine, N,N-diethyl-2-ethylhexylamine,

[0353] N,N-diethyl-3-ethylhexylamine, N,N-diethyl-4-ethylhexylamine,

[0354] N,N-diethyl-2-propylpentylamine, N,N-diethylcyclooctylamine,

[0355] N,N-diethyldimethylcyclohexylamine,

[0356] N-methyl-N-ethylisopropylamine, N-methyl-N-ethyl-2-butylamine,

[0357] N-methyl-N-ethylisobutylamine, N-methyl-N-ethyl-2-pentylamine,

[0358] N-methyl-N-ethyl-3-pentylamine,

[0359] N-methyl-N-ethyl-2-methylbutylamine,

[0360] N-methyl-N-ethyl-3-methylbutylamine,

[0361] N-methyl-N-ethylcyclopentylamine, N-methyl-N-ethyl-2-hexylamine,

[0362] N-methyl-N-ethyl-3-hexylamine,

[0363] N-methyl-N-ethyl-2-methylpentylamine,

[0364] N-methyl-N-ethyl-3-methylpentylamine,

[0365] N-methyl-N-ethyl-4-methylpentylamine,

[0366] N-methyl-N-ethyl-2-ethylbutylamine,

[0367] N-methyl-N-ethyl-cyclohexylamine, N-methyl-N-ethyl-2-heptylamine,

[0368] N-methyl-N-ethyl-3-heptylamine

[0369] N-methyl-N-ethyl-4-heptylamine,

[0370] N-methyl-N-ethyl-2-methylhexylamine

[0371] N-methyl-N-ethyl-3-methylhexylamine,

[0372] N-methyl-N-ethyl-4-methylhexylamine,

[0373] N-methyl-N-ethyl-5-methylhexylamine,

[0374] N-methyl-N-ethyl-2-ethylpentylamine,

[0375] N-methyl-N-ethyl-3-ethylpentylamine,

[0376] N-methyl-N-ethyl-2-propylbutylamine,

[0377] N-methyl-N-ethylcycloheptylamine,

[0378] N-methyl-N-ethylmethylcyclohexylamine,

[0379] N-methyl-N-ethylbenzylamine, N-methyl-N-ethyl-2-octylamine,

[0380] N-methyl-N-ethyl-3-octylamine, N-methyl-N-ethyl-4-octylamine,

[0381] N-methyl-N-ethyl-2-methylheptylamine,

[0382] N-methyl-N-ethyl-3-methylheptylamine,

[0383] N-methyl-N-ethyl-4-methylheptylamine,

[0384] N-methyl-N-ethyl-5-methylheptylamine,

[0385] N-methyl-N-ethyl-6-methylheptylamine,

[0386] N-methyl-N-ethyl-2-ethylhexylamine,

[0387] N-methyl-N-ethyl-3-ethylhexylamine,

[0388] N-methyl-N-ethyl-4-ethylhexylamine,

[0389] N-methyl-N-ethyl-2-propylpentylamine,

[0390] N-methyl-N-ethylcyclooctylamine,

[0391] N-methyl-N-ethyldimethylcyclohexylamine,

[0392] N-methyldiisopropylamine, N-methylbis(2-butyl)amine,

[0393] N-methylbis(isobutyl)amine, N-methylbis(2-pentyl)amine,

[0394] N-methylbis(3-pentyl)amine, N-methylbis(2-methylbutyl)amine,

[0395] N-methylbis(3-methylbutyl)amine, N-methyldicyclopentylamine,

[0396] N-methylbis(2-hexyl)amine, N-methylbis(3-hexyl)amine,

[0397] N-methylbis(2-methylpentyl)amine,

[0398] N-methylbis(3-methylpentyl)amine,

[0399] N-methylbis(4-methylpentyl)amine, N-methylbis(2-ethylbutyl)amine,

[0400] N-methyldicyclohexylamine, N-methylbis(2-heptyl)amine,

[0401] N-methylbis(3-heptyl)amine, N-methylbis(4-heptyl)amine,

[0402] N-methylbis(2-methylhexyl)amine, N-methylbis(3-methylhexyl)amine,

[0403] N-methylbis(4-methylhexyl)amine, N-methylbis(5-methylhexyl)amine,

[0404] N-methylbis(2-ethylpentyl)amine, N-methylbis(3-ethylpentyl)amine,

[0405] N-methylbis(2-propylbutyl)amine, N-methylbis(cycloheptyl)amine,

[0406] N-methylbis(methylcyclohexyl)amine

[0407] N-methyldibenzylamine, N-methylbis(2-octyl)amine,

[0408] N-methylbis(3-octyl)amine

[0409] N-methylbis(4-octyl)amine, N-methylbis(2-methylheptyl)amine,

[0410] N-methylbis(3-methylheptyl)amine,

[0411] N-methylbis (4-methylheptyl) amine,

[0412] N-methylbis(5-methylheptyl)amine,

[0413] N-methylbis(6-methylheptyl)amine, N-methylbis(2-ethylhexyl)amine,

[0414] N-methylbis(3-ethylhexyl)amine, N-methylbis(4-ethylhexyl)amine,

[0415] N-methylbis(2-propylpentyl)amine, N-methylbis(cyclooctyl)amine,

[0416] N-methylbis(dimethylcyclohexyl)amine, N-ethyldiisopropylamine,

[0417] N-ethylbis(2-butyl)amine, N-ethylbis(isobutyl)amine,

[0418] N-ethylbis(2-pentyl)amine, N-ethylbis(3-pentyl)amine,

[0419] N-ethylbis(2-methylbutyl)amine, N-ethylbis(3-methylbutyl)amine,

[0420] N-ethyldicyclopentylamine, N-ethylbis(2-hexyl)amine,

[0421] N-ethylbis(3-hexyl)amine, N-ethylbis(2-methylpentyl)amine,

[0422] N-ethylbis(3-methylpentyl)amine, N-ethylbis(4-methylpentyl)amine,

[0423] N-ethylbis(2-ethylbutyl)amine, N-ethyldicyclohexylamine,

[0424] N-ethylbis(2-heptyl)amine, N-ethylbis(3-heptyl)amine,

[0425] N-ethylbis(4-heptyl)amine, N-ethylbis(2-methylhexyl)amine,

[0426] N-ethylbis(3-methylhexyl)amine, N-ethylbis(4-methylhexyl)amine,

[0427] N-ethylbis(5-methylhexyl)amine, N-ethylbis(2-ethylpentyl)amine,

[0428] N-ethylbis(3-ethylpentyl)amine, N-ethylbis(2-propylbutyl)amine,

[0429] N-ethylbis(cycloheptyl)amine, N-ethylbis(methylcyclohexyl)amine,

[0430] N-ethyldi(benzyl)amine, N-ethylbis(2-octyl)amine,

[0431] N-ethylbis(3-octyl)amine, N-ethylbis(4-octyl)amine,

[0432] N-ethylbis(2-methylheptyl)amine, N-ethylbis(3-methylheptyl)amine,

[0433] N-ethylbis(4-methylheptyl)amine, N-ethylbis(5-methylheptyl)amine,

[0434] N-ethylbis(6-methylheptyl)amine, N-ethylbis(2-ethylhexyl)amine,

[0435] N-ethylbis(3-ethylhexyl)amine, N-ethylbis(4-ethylhexyl)amine,

[0436] N-ethylbis(2-propylpentyl)amine, N-ethylbis(cyclooctyl)amine,

[0437] N-ethylbis(dimethylcyclohexyl)amine.

[0438] Nonlimiting examples of alkali metal tetraphenylborates oralkaline earth metal tetraphenylborates used are:

[0439] lithium tetrakis(pentafluorophenyl)borate, sodium

[0440] tetrakis(pentafluorophenyl)borate, potassium

[0441] tetrakis(pentafluorophenyl)borate, lithium

[0442] tetrakis(2,3,4,6-tetrafluorophenyl)borate, sodium

[0443] tetrakis(2,3,4,6-tetrafluorophenyl)borate, potassium

[0444] tetrakis(2,3,4,6-tetrafluorophenyl)borate, lithium

[0445] tetrakis(2,3,5,6-tetrafluorophenyl)borate, sodium

[0446] tetrakis(2,3,5,6-tetrafluorophenyl)borate, potassium

[0447] tetrakis(2,3,5,6-tetrafluorophenyl)borate, lithium

[0448] tetrakis(2,3,5-trifluorophenyl)borate, sodium

[0449] tetrakis(2,3,5-trifluorophenyl)borate, potassium

[0450] tetrakis(2,3,5-trifluorophenyl)borate, lithium

[0451] tetrakis(2,3,6-trifluorophenyl)borate, sodium

[0452] tetrakis(2,3,6-trifluorophenyl)borate, potassium

[0453] tetrakis(2,3,6-trifluorophenyl)borate, lithium

[0454] tetrakis(1,3-difluorophenyl)borate, sodium

[0455] tetrakis(1,3-difluorophenyl)borate, potassium

[0456] tetrakis(1,3-difluorophenyl)borate, lithium

[0457] tetrakis(2,3,5,6-tetrafluoro-4-methylphenyl)borate, sodium

[0458] tetrakis(2,3,5,6-tetrafluoro-4-methylphenyl)borate, potassium

[0459] tetrakis(2,3,5,6-tetrafluoro-4-methylphenyl)borate, lithium

[0460] tetrakis(2,3,4,6-tetrafluoro-5-methylphenyl)borate, sodium

[0461] tetrakis(2,3,4,6-tetrafluoro-5-methylphenyl)borate, potassium

[0462] tetrakis(2,3,4,6-tetrafluoro-5-methylphenyl)borate, lithium

[0463] tetrakis(2,3,5-trifluorophenyl)borate, sodiumtetrakis(2,3,5-trifluorophenyl)borate, potassium

[0464] tetrakis(2,3,5-trifluorophenyl)borate, lithiumtetrakis(2,4,5-trifluoro-6-methylphenyl)borate, sodium

[0465] tetrakis(2,4,5-trifluoro-6-methylphenyl)borate, potassium

[0466] tetrakis(2,4,5-trifluoro-6-methylphenyl)borate, lithium

[0467] tetrakis(2,3,6-trifluoro-4-methylphenyl)borate, sodium

[0468] tetrakis(2,3,6-trifluoro-4-methylphenyl)borate, potassium

[0469] tetrakis(2,3,6-trifluoro-4-methylphenyl)borate, lithium

[0470] tetrakis(2,4,6-trifluoro-3-methylphenyl)borate, sodium

[0471] tetrakis(2,4,6-trifluoro-3-methylphenyl)borate, potassium

[0472] tetrakis(2,4,6-trifluoro-3-methylphenyl)borate, lithium

[0473] tetrakis(2,6-difluoro-3-methylphenyl)borate, sodium

[0474] tetrakis(2,6-difluoro-3-methylphenyl)borate, potassium

[0475] tetrakis(2,6-difluoro-3-methylphenyl)borate, lithium

[0476] tetrakis(2,4-difluoro-5-methylphenyl)borate, sodium

[0477] tetrakis(2,4-difluoro-5-methylphenyl)borate, potassium

[0478] tetrakis(2,4-difluoro-5-methylphenyl)borate, lithium

[0479] tetrakis(3,5-difluoro-2-methylphenyl)borate, sodium

[0480] tetrakis(3,5-difluoro-2-methylphenyl)borate, potassium

[0481] tetrakis(3,5-difluoro-2-methylphenyl)borate, lithium

[0482] tetrakis(4-methoxy-2,3,5,6-tetrafluorophenyl)borate, sodium

[0483] tetrakis(4-methoxy-2,3,5,6-tetrafluorophenyl)borate, potassium

[0484] tetrakis(4-methoxy-2,3,5,6-tetrafluorophenyl)borate, lithium

[0485] tetrakis(3-methoxy-2,4,5,6-tetrafluorophenyl)borate, sodium

[0486] tetrakis(3-methoxy-2,4,5,6-tetrafluorophenyl)borate, potassium

[0487] tetrakis(3-methoxy-2,4,5,6-tetrafluorophenyl)borate, lithium

[0488] tetrakis(2-methoxy-3,4,5,6-tetrafluorophenyl)borate, sodium

[0489] tetrakis(2-methoxy-3,4,5,6-tetrafluorophenyl)borate, potassium

[0490] tetrakis(2-methoxy-3,4,5,6-tetrafluorophenyl)borate.

[0491] These borates can also contain solvents, e.g. etherate or thelike. The reaction to form the corresponding ammonium compounds of theformula (I) or (II) can be carried out in an aliphatic or aromaticsolvent such as toluene, heptane, tetrahydrofuran or diethyl ether. Thereaction time is from 1 minute to 24 hours, with preference being givento a reaction time of from 5 minutes to 240 minutes. The reactiontemperature is in the range from −10° C. to +200° C., preferably from 0°C. to 50° C.

[0492] The present invention further provides a catalyst system.

[0493] The catalyst system of the present invention comprises:

[0494] A) a least one organometallic transition metal compound,

[0495] B) at least one Lewis base,

[0496] C) at least one support component and

[0497] D) at least one novel compound of the formula (I) or (II).

[0498] Organometallic transition metal compounds A) used are, forexample, metallocene compounds. These can be, for example, bridged orunbridged biscyclopentadienyl complexes as are described, for example,in EP-A-0 129 368, EP-A-0 561 479, EP-A-0 545 304 and EP-A-0 576 970,monocyclopentadienyl complexes such as bridged amidocyclopentadienylcomplexes as described, for example, in EP-A-0 416 815, multinuclearcyclopentadienyl complexes as described, for example, in EP-A-0 632 063,α-ligand-substituted tetrahydropentalenes as described, for example, inEP-A-0 659 758 or π-ligand-substituted tetrahydroindenes as described,for example, in EP-A-0 661 300. It is also possible to useorganometallic compounds in which the complexing ligand contains nocyclopentadienyl ligand. Examples of such compounds are diaminecomplexes of metals of transition groups III and IV of the PeriodicTable of the Elements, as are described, for example, by D. H.McConville et al, Macromolecules, 1996, 29, 5241 and D. H. McConville etal, J. Am. Chem. Soc., 1996, 118, 10008. In addition, diimine complexesof metals of transition group VIII of the Periodic Table of the Elements(e.g. Ni²⁺ or Pd²⁺ complexes) as are described by Brookhart et al, J.Am. Chem. Soc. 1995, 117, 6414 and Brookhart et al, J. Am. Chem. Soc.,1996, 118, 267, can also be used. Further compounds which can be usedare 2,6-bis(imino)pyridyl complexes of metals of transition group VIIIof the Periodic Table of the Elements (e.g. Co²⁺ or Fe²⁺ complexes) asare described by Brookhart et al, J. Am. Chem. Soc. 1998, 120, 4049 andGibson et al, Chem. Commun. 1998, 849. It is also possible to usemetallocene compounds whose complexing ligand contains heterocycles.Examples of such compounds are described in WO 98/22486.

[0499] Preferred metallocene compounds are unbridged or bridgedcompounds of the formula (III),

[0500] where

[0501] M² is a metal of transition group III, IV, V or VI of thePeriodic Table of the Elements, in particular Ti, Zr or Hf,

[0502] R¹⁰ are identical or different and are each a hydrogen atom orSi(R¹²)₃, where R¹² are identical or different and are each a hydrogenatom or a C₁-C₄₀ group, preferably C₁-C₂₀-alkyl, C₁-C₁₀-fluoroalkyl,C₁-C₁₀-alkoxy, C₆-C₂₀-aryl, C₆-C₁₀-fluoroaryl, C₆-C₁₀-aryloxy,C₂-C₁₀-alkenyl, C₇-C₄₀-arylalkyl, C₇-C₄₀-alkylaryl orC₈-C₄₀-arylalkenyl, or R¹⁰ is a C₁-C₃₀ group, preferably C₁-C₂₅-alkylsuch as methyl, ethyl, tert-butyl, cyclohexyl or octyl, C₂-C₂₅-alkenyl,C₃-C₁₅-alkylalkenyl, C₆-C₂₄-aryl, C₅-C₂₄-heteroaryl, C₇-C₃₀-arylalkyl,C₇-C₃₀-alkylaryl, fluorinated C₁-C₂₅-alkyl, fluorinated C₆-C₂₄-aryl,fluorinated C₇-C₃₀-arylalkyl, fluorinated C₇-C₃₀-alkylaryl orC₁-C₁₂-alkoxy, or two or more radicals R¹⁰ may be connected to oneanother in such a way that the radicals R¹⁰ and the atoms of thecyclopentadienyl ring which connect them form a C₄-C₂₄ ring system whichmay in turn be substituted,

[0503] R¹¹ are identical or different and are each a hydrogen atom orSi(R¹²)₃, where R¹² are identical or different and are each a hydrogenatom or a C₁-C₄₀ group, preferably C₁-C₂₀-alkyl, C₁-C₁₀-fluoroalkyl,C₁-C₁₀-alkoxy, C₆-C₁₄-aryl, C₆-C₁₀-fluoroaryl, C₆-C₁₀-aryloxy,C₂-C₁₀-alkenyl, C₇-C₄₀-arylalkyl, C₇-C₄₀-alkylaryl orC₈-C₄₀-arylalkenyl, or R¹¹ is a C₁-C₃₀ group, preferably C₁-C₂₅-alkylsuch as methyl, ethyl, tert-butyl, cyclohexyl or octyl, C₂-C₂₅-alkenyl,C₃-C₁₅-alkylalkenyl, C₆-C₂₄-aryl, C₅-C₂₄-heteroaryl,C₅-C₂₄-alkylheteroaryl, C₅-C₂₄-alkylheteroaryl, C₇-C₃₀-arylalkyl,C₇-C₃₀-alkylaryl, fluorinated C₁-C₂₅-alkyl, fluorinated C₆-C₂₄-aryl,fluorinated C₇-C₃₀-arylalkyl, fluorinated C₇-C₃₀-alkylaryl orC₁-C₁₂-alkoxy, or two or more radicals R¹¹ may be connected to oneanother in such a way that the radicals R¹¹ and the atoms of thecyclopentadienyl ring which connect them form a C₄-C₂₄ ring system whichmay in turn be substituted,

[0504] l is 5 when v=0, and 1 is 4 when v=1,

[0505] m is 5 when v=0, and m is 4 when v=1,

[0506] L¹ may be identical or different and are each a hydrogen atom, aC₁-C₁₀-hydrocarbon group such as C₁-C₁₀-alkyl or C₆-C₁₀-aryl, a halogenatom or OR¹⁶, SR¹⁶, OSi(R¹⁶)₃, Si(R¹⁶)₃, P(R¹⁶)₂ or N(R¹⁶)₂, where R¹⁶is a halogen atom, a C₁-C₁₀-alkyl group, a halogenated C₁-C₁₀-alkylgroup, a C₆-C₂₀-aryl group or a halogenated C₆-C₂₀-aryl group, or L¹ isa toluenesulfonyl, trifluoroacetyl, trifluoroacetoxyl,trifluoromethanesulfonyl, nonafluorobutanesulfonyl or2,2,2-trifluoroethanesulfonyl group,

[0507] o is an integer from 1 to 4, preferably 2,

[0508] z is a bridging structural element between the twocyclopentadienyl rings and v is 0 or 1.

[0509] Examples of Z are M²R¹³R¹⁴ groups, where M² is carbon, silicon,germanium, boron or tin and R¹³ and R¹⁴ are identical or different andare each a C₁-C₂₀-hydrocarbon-containing group such as C₁-C₁₀-alkyl,C₆-C₁₄-aryl or trimethylsilyl. Z is preferably CH₂, CH₂CH₂, CH(CH₃)CH₂,CH(C₄H₉)C(CH₃)₂, C(CH₃)₂, (CH₃)₂Si, (CH₃)₂Ge, (CH₃)₂Sn, (C₆H₅)₂Si,(C₆H₅)(CH₃)Si, (C₆H₅)₂Ge, (C₆H₅)₂Sn, (CH₂)₄Si, CH₂Si(CH₃)₂, o-C₆H₄ or2,2′-(C₆H₄)₂. It is also possible for Z together with one or moreradicals R¹⁰ and/or R¹¹ to form a monocyclic or polycyclic ring system.

[0510] Preference is given to chiral bridged metallocene compounds ofthe formula (III), particularly ones in which v is equal to 1 and one orboth cyclopentadienyl rings are substituted so that they form an indenylring. The indenyl ring is preferably substituted, in particular in the 2position, 4 position, 2,4,5 positions, 2,4,6 positions, 2,4,7 positionsor 2,4,5,6 positions, by C₁-C₂₀ groups such as C₁-C₁₀-alkyl orC₆-C₂₀-aryl, where two or more substituents on the indenyl ring may alsotogether form a ring system.

[0511] Chiral bridged metallocene compounds of the formula (III) can beused as pure racemic or pure meso compounds. However, it is alsopossible to use mixtures of a racemic compound and a meso compound.

[0512] Examples of metallocene compounds are:

[0513] dimethylsilanediylbis(indenyl)zirconium dichloride

[0514] dimethylsilanediylbis(4-naphthylindenyl)zirconium dichloride

[0515] dimethylsilanediylbis(2-methylbenzoindenyl)zirconium dichloride

[0516] dimethylsilanediylbis(2-methylindenyl)zirconium dichloride

[0517] dimethylsilanediylbis(2-methyl-4-(1-naphthyl)indenyl)zirconiumdichloride

[0518] dimethylsilanediylbis(2-methyl-4-(2-naphthyl)indenyl)zirconiumdichloride

[0519] dimethylsilanediylbis(2-methyl-4-phenylindenyl)zirconiumdichloride

[0520] dimethylsilanediylbis(2-methyl-4-tert-butylindenyl)zirconiumdichloride

[0521] dimethylsilanediylbis(2-methyl-4-isopropylindenyl)zirconiumdichloride

[0522] dimethylsilanediylbis(2-methyl-4-ethylindenyl)zirconiumdichloride

[0523] dimethylsilanediylbis(2-methyl-4-α-acenaphthindenyl)zirconiumdichloride

[0524] dimethylsilanediylbis(2,4-dimethylindenyl)zirconium dichloride

[0525] dimethylsilanediylbis(2-ethylindenyl)zirconium dichloride

[0526] dimethylsilanediylbis(2-ethyl-4-ethylindenyl)zirconium dichloride

[0527] dimethylsilanediylbis(2-ethyl-4-phenylindenyl)zirconiumdichloride

[0528] dimethylsilanediylbis (2-methyl-4,5-benzoindenyl) zirconiumdichloride

[0529] dimethylsilanediylbis(2-methyl-4,6-diisopropylindenyl)zirconiumdichloride

[0530] dimethylsilanediylbis (2-methyl-4,5-diisopropylindenyl) zirconiumdichloride

[0531] dimethylsilanediylbis(2,4,6-trimethylindenyl)zirconium dichloride

[0532] dimethylsilanediylbis(2,5,6-trimethylindenyl)zirconium dichloride

[0533] dimethylsilanediylbis(2,4,7-trimethylindenyl)zirconium dichloride

[0534] dimethylsilanediylbis(2-methyl-5-isobutylindenyl)zirconiumdichloride

[0535] dimethylsilanediylbis(2-methyl-5-tert-butylindenyl)zirconiumdichloride

[0536] methyl(phenyl)silanediylbis(2-methyl-4-phenylindenyl)zirconiumdichloride

[0537]methyl(phenyl)silanediylbis(2-methyl-4,6-diisopropylindenyl)-zirconiumdichloride

[0538]methyl(phenyl)silanediylbis(2-methyl-4-isopropylindenyl)-zirconiumdichloride

[0539] methyl(phenyl)silanediylbis(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[0540]methyl(phenyl)silanediylbis(2-methyl-4,5-(methylbenzo)indenyl)-zirconiumdichloride

[0541]methyl(phenyl)silanediylbis(2-methyl-4,5-(tetramethylbenzo)-indenyl)zirconiumdichloride

[0542]methyl(phenyl)silanediylbis(2-methyl-4-a-acenaphthindenyl)-zirconiumdichloride

[0543] methyl(phenyl)silanediylbis(2-methylindenyl)zirconium dichloride

[0544] methyl(phenyl)silanediylbis(2-methyl-5-isobutylindenyl)zirconiumdichloride

[0545] 1,2-ethanediylbis(2-methyl-4-phenylindenyl)zirconium dichloride

[0546] 1,4-butanediylbis(2-methyl-4-phenylindenyl)zirconium dichloride

[0547] 1,2-ethanediylbis(2-methyl-4,6-diisopropylindenyl)zirconiumdichloride

[0548] 1,4-butanediylbis(2-methyl-4-isopropylindenyl)zirconiumdichloride

[0549] 1,4-butanediylbis(2-methyl-4,5-benzoindenyl)zirconium dichloride

[0550] 1,2-ethanediylbis(2-methyl-4,5-benzoindenyl)zirconium dichloride

[0551] 1,2-ethanediylbis(2,4,7-trimethylindenyl)zirconium dichloride

[0552] 1,2-ethanediylbis(2-methylindenyl)zirconium dichloride

[0553] 1,4-butanediylbis(2-methylindenyl)zirconium dichloride

[0554][4-(η⁵-cyclopentadienyl)-4,6,6-trimethyl(η⁵-4,5-tetrahydropentalene)]dichlorozirconium

[0555] [4-(η⁵-3′-trimethylsilylcyclopentadienyl)-4, 6, 6-trimethyl(η⁵-4,5-tetrahydropentalene)]dichlorozirconium

[0556][4-(η⁵-3′-isopropylcyclopentadienyl)-4,6,6-trimethyl(η⁵-4,5-tetrahydropentalene)]dichlorozirconium

[0557][4-(η⁵-cyclopentadienyl)-4,7,7-trimethyl(η⁵-4,5,6,7-tetrahydroindenyl)]dichlorotitanium

[0558][4-(η⁵-cyclopentadienyl)-4,7,7-trimethyl(η⁵-4,5,6,7-tetrahydroindenyl)]dichlorozirconium

[0559][4-(η⁵-cyclopentadienyl)-4,7,7-trimethyl(η⁵-4,5,6,7-tetrahydroindenyl)]dichlorohafnium

[0560] [4-(η⁵-3′-tert-butylcyclopentadienyl)-4,7,7-trimethyl(η⁵-4,5,6,7-tetrahydroindenyl)]dichlorotitanium

[0561]4-(η⁵-3′-isopropylcyclopentadienyl)-4,7,7-trimethyl(η⁵-4,5,6,7-tetrahydroindenyl)]dichlorotitanium

[0562] 4-(η⁵-3′-methylcyclopentadienyl)-4,7,7-trimethyl (η⁵-4, 5,6,7-tetrahydroindenyl)]dichlorotitanium

[0563]4-(η⁵-3′-trimethylsilylcyclopentadienyl)-2-trimethylsilyl-4,7,7-trimethyl(η⁵-4,5,6,7-tetrahydroindenyl)]dichlorotitanium

[0564]4-(η⁵-3′-tert-butylcyclopentadienyl)-4,7,7-trimethyl(η⁵-4,5,6,7-tetrahydroindenyl)]dichlorozirconium

[0565](tert-butylamido)(tetramethyl-η⁵-cyclopentadienyl)dimethylsilyl-dichlorotitanium

[0566](tert-butylamido)(tetramethyl-η⁵-cyclopentadienyl)-1,2-ethane-diyldichlorotitanium

[0567](methylamido)(tetramethyl-η⁵-cyclopentadienyl)dimethylsilyl-dichlorotitanium

[0568](methylamido)(tetramethyl-η⁵-cyclopentadienyl)-1,2-ethanediyl-dichlorotitanium

[0569](tert-butylamido)(2,4-dimethyl-2,4-pentadien-1-yl)dimethylsilyl-dichlorotitanium

[0570] bis(cyclopentadienyl)zirconium dichloride

[0571] bis(n-butylcyclopentadienyl)zirconium dichloride

[0572] bis(1,3-dimethylcyclopentadienyl)zirconium dichloride

[0573] tetrachloro[1-[bis(η⁵-1H-inden-1-ylidene)methylsilyl]-3-η⁵penta-2,4-dien-1-ylidene)-3-η⁵-9H-fluoren-9-ylidene)butane]-dizirconium

[0574]tetrachloro[2-[bis(η⁵-2-methyl-1H-inden-1-ylidene)methoxysilyl]-5-(η⁵-2,3,4,5-tetramethylcyclopenta-2,4-dien-1-ylidene)-5-(η⁵-9H-fluoren-9-ylidene)hexane]dizirconium

[0575]tetrachloro[1-[bis(η⁵-1H-inden-1-ylidene)methylsilyl]-6-(5-cyclopenta-2,4-dien-1-ylidene)-6-(η⁵-9H-fluoren-9-ylidene)-3-oxaheptane]dizirconium

[0576]dimethylsilanediylbis(2-methyl-4-(tert-butylphenyl)indenyl)-zirconiumdichloride

[0577]dimethylsilanediylbis(2-methyl-4-(4-methylphenyl)indenyl)]-zirconiumdichloride

[0578]dimethylsilanediylbis(2-methyl-4-(4-ethylphenyl)indenyl)]-zirconiumdichloride

[0579]dimethylsilanediylbis(2-methyl-4-(4-trifluoromethylphenyl)-indenyl)]zirconiumdichloride

[0580]dimethylsilanediylbis(2-methyl-4-(4-methoxyphenyl)indenyl)]-zirconiumdichloride

[0581]dimethylsilanediylbis(2-ethyl-4-(4-tert-butylphenyl)indenyl)]-zirconiumdichloride

[0582] dimethylsilanediylbis (2-ethyl-4-(4-methylphenyl)indenyl)zirconium dichloride

[0583] dimethylsilanediylbis(2-ethyl-4-(4-ethylphenyl)indenyl)zirconiumdichloride

[0584]dimethylsilanediylbis(2-ethyl-4-(4-trifluoromethylphenyl)-indenyl)-zirconiumdichloride

[0585]dimethylsilanediylbis(2-ethyl-4-(4-methoxyphenyl)indenyl)-zirconiumdichloride

[0586]dimethylsilanediylbis(2-methyl-4-(4-tert-butylphenyl)indenyl)-dimethylzirconium

[0587]dimethylsilanediylbis(2-methyl-4-(4-methylphenyl)indenyl)-dimethyl-zirconium

[0588]dimethylsilanediylbis(2-methyl-4-(4-ethylphenyl)indenyl)dimethyl-zirconium

[0589]dimethylsilanediylbis(2-methyl-4-(4-trifluoromethylphenyl)-indenyl)dimethylzirconium

[0590]dimethylsilanediylbis(2-methyl-4-(4-methoxyphenylindenyl)-dimethylzirconium

[0591]dimethylsilanediylbis(2-ethyl-4-(4-tert-butylphenylindenyl)-dimethylzirconium

[0592]dimethylsilanediylbis(2-ethyl-4-(4-methylphenylindenyl)dimethyl-zirconium

[0593]dimethylsilanediylbis(2-ethyl-4-(4-ethylphenylindenyl)diethyl-zirconium

[0594]dimethylsilanediylbis(2-ethyl-4-(4-trifluoromethylphenylindenyl)-dimethylzirconium

[0595]dimethylsilanediylbis(2-ethyl-4-(4-methoxyphenylindenyl)dimethyl-zirconium

[0596]dimethylsilanediylbis(2-methyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0597]dimethylsilanediylbis(2-methyl-4-(4′-tert-butylphenyl)indenyl)-hafniumdichloride

[0598]dimethylsilanediylbis(2-methyl-4-(4′-tert-butylphenyl)indenyl)-titaniumdichloride

[0599]dimethylsilanediylbis(2-methyl-4-(4′-methylphenyl)indenyl)-zirconiumdichloride

[0600]dimethylsilanediylbis(2-methyl-4-(4′-n-propylphenyl)indenyl)-zirconiumdichloride

[0601]dimethylsilanediylbis(2-methyl-4-(4′-n-butylphenyl)indenyl)-zirconiumdichloride

[0602]dimethylsilanediylbis(2-methyl-4-(4′-hexylphenyl)indenyl)-zirconiumdichloride

[0603]dimethylsilanediylbis(2-methyl-4-(4′-sec-butylphenyl)indenyl)-zirconiumdichloride

[0604] dimethylsilanediylbis(2-ethyl-4-phenylindenyl)zirconiumdichloride

[0605]dimethylsilanediylbis(2-ethyl-4-(4′-methylphenyl)indenyl)-zirconiumdichloride

[0606] dimethylsilanediylbis(2-ethyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0607]dimethylsilanediylbis(2-ethyl-4-(4′-n-propylphenyl)indenyl)-zirconiumdichloride

[0608]dimethylsilanediylbis(2-ethyl-4-(4′-n-butylphenyl)indenyl)-zirconiumdichloride

[0609]dimethylsilanediylbis(2-ethyl-4-(4′-hexylphenyl)indenyl)-zirconiumdichloride

[0610]dimethylsilanediylbis(2-ethyl-4-(4′-pentylphenyl)indenyl)-zirconiumdichloride

[0611]dimethylsilanediylbis(2-ethyl-4-(4′-cyclohexylphenyl)indenyl)-zirconiumdichloride

[0612]dimethylsilanediylbis(2-ethyl-4-(4′-sec-butylphenyl)indenyl)-zirconiumdichloride

[0613]dimethylsilanediylbis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0614] dimethylsilanediylbis(2-n-propyl-4-phenyl)indenyl)zirconiumdichloride

[0615]dimethylsilanediylbis(2-n-propyl-4-(4′-methylphenyl)indenyl)-zirconiumdichloride

[0616]dimethylsilanediylbis(2-n-propyl-4-(4′-ethylphenyl)indenyl)-zirconiumdichloride

[0617]dimethylsilanediylbis(2-n-propyl-4-(4′-isopropylphenyl)indenyl)-zirconiumdichloride

[0618]dimethylsilanediylbis(2-n-propyl-4-(4′-n-butylphenyl)indenyl)-zirconiumdichloride

[0619]dimethylsilanediylbis(2-n-propyl-4-(4′-hexylphenyl)indenyl)-zirconiumdichloride

[0620]dimethylsilanediylbis(2-n-propyl-4-(4′-cyclohexylphenyl)indenyl)-zirconiumdichloride

[0621]dimethylsilanediylbis(2-n-propyl-4-(4′-sec-butylphenyl)indenyl)-zirconiumdichloride

[0622]dimethylsilanediylbis(2-n-propyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0623] dimethylsilanediylbis(2-n-butyl-4-phenyl)indenyl)zirconiumdichloride

[0624]dimethylsilanediylbis(2-n-butyl-4-(4′-methylphenyl)indenyl)-zirconiumdichloride

[0625]dimethylsilanediylbis(2-n-butyl-4-(4′-ethylphenyl)indenyl)-zirconiumdichloride

[0626]dimethylsilanediylbis(2-n-butyl-4-(4′-n-propylphenyl)indenyl)-zirconiumdichloride

[0627]dimethylsilanediylbis(2-n-butyl-4-(4′-isopropylphenyl)indenyl)-zirconiumdichloride

[0628]dimethylsilanediylbis(2-n-butyl-4-(4′-n-butylphenyl)indenyl)-zirconiumdichloride

[0629]dimethylsilanediylbis(2-n-butyl-4-(4′-hexylphenyl)indenyl)-zirconiumdichloride

[0630]dimethylsilanediylbis(2-n-butyl-4-(4′-cyclohexylphenyl)indenyl)-zirconiumdichloride

[0631]dimethylsilanediylbis(2-n-butyl-4-(4′-sec-butylphenyl)indenyl)-zirconiumdichloride

[0632]dimethylsilanediylbis(2-n-butyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0633] dimethylsilanediylbis(2-hexyl-4-phenylindenyl)zirconiumdichloride

[0634]dimethylsilanediylbis(2-hexyl-4-(4′-methylphenyl)indenyl)-zirconiumdichloride

[0635] dimethylsilanediylbis(2-hexyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0636]dimethylsilanediylbis(2-hexyl-4-(4′-n-propylphenyl)indenyl)-zirconiumdichloride

[0637]dimethylsilanediylbis(2-hexyl-4-(4′-isopropylphenyl)indenyl)-zirconiumdichloride

[0638]dimethylsilanediylbis(2-hexyl-4-(4′-n-butylphenyl)indenyl)-zirconiumdichloride

[0639] dimethylsilanediylbis(2-hexyl-4-(4′-hexylphenyl)indenyl)zirconiumdichloride

[0640]dimethylsilanediylbis(2-hexyl-4-(4′-cyclohexylphenyl)indenyl)-zirconiumdichloride

[0641]dimethylsilanediylbis(2-hexyl-4-(4′-sec-butylphenyl)indenyl)-zirconiumdichloride

[0642]dimethylsilanediylbis(2-hexyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0643]dimethylsilanediylbis(2-methyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumbis(dimethylamide)

[0644]dimethylsilanediylbis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)-dibenzylzirconium

[0645]dimethylsilanediylbis(2-methyl-4-(4′-tert-butylphenyl)indenyl)-dimethylzirconium

[0646]dimethylgermanediylbis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0647]dimethylgermanediylbis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)-hafniumdichloride

[0648]dimethylgermanediylbis(2-propyl-4-(4′-tert-butylphenyl)indenyl)-titaniumdichloride

[0649]dimethylgermanediylbis(2-methyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0650] ethylidenebis(2-ethyl-4-phenylindenyl)zirconium dichloride

[0651] ethylidenebis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0652] ethylidenebis(2-n-propyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0653] ethylidenebis(2-n-butyl-4-(4′-tert-butylphenyl)indenyl)titaniumdichloride

[0654]ethylidenebis(2-hexyl-4-(4′-tert-butylphenyl)indenyl)dibenzyl-zirconium

[0655]ethylidenebis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)dibenzyl-hafnium

[0656]ethylidenebis(2-methyl-4-(4′-tert-butylphenyl)indenyl)dibenzyl-titanium

[0657] ethylidenebis(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0658]ethylidenebis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)dimethyl-hafnium

[0659] ethylidenebis(2-n-propyl-4-phenylindenyl)dimethyltitanium

[0660] ethylidenebis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)zirconiumbis(dimethylamide)

[0661] ethylidenebis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)hafniumbis(dimethylamide)

[0662] ethylidenebis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)titaniumbis(dimethylamide)

[0663]methylethylidenebis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0664]methylethylidenebis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)-hafniumdichloride

[0665]phenylphosphinediyl(2-ethyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0666]phenylphosphinediyl(2-methyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride

[0667]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-methylphenylindenyl)zirconiumdichloride

[0668]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-methylphenylindenyl)zirconiumdichloride

[0669]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-methylphenylindenyl)zirconiumdichloride

[0670]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0671]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0672]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0673]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0674]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0675]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0676]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0677]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0678]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0679]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0680]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0681]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0682]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0683]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0684]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0685]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0686]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-methylphenyl)indenyl)zirconiumdichloride

[0687]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0688]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0689]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0690]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0691]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0692]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0693]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0694]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0695]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0696]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0697]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0698]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0699]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0700]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0701]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0702]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0703]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0704]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0705]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0706]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-ethylphenyl)indenyl)zirconiumdichloride

[0707]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0708]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0709]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0710]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0711]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0712]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0713]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0714]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0715]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0716]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0717]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0718]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0719]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0720]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0721]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0722]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0723]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0724]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0725]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0726]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-n-propylphenyl)indenyl)zirconiumdichloride

[0727]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0728]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0729]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0730]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0731]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloridedimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0732]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0733]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0734]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0735]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0736]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0737]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0738]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0739]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0740]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0741]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0742]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0743]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0744]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0745]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-isopropylphenyl)indenyl)zirconiumdichloride

[0746]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0747]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0748]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0749]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0750]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0751]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0752]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0753]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0754]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0755]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0756]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0757]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0758]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0759]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0760]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0761]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0762]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0763]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0764]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0765]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-n-butylphenyl)indenyl)zirconiumdichloride

[0766]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0767]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0768]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0769]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0770]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0771]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0772]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0773]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0774]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-s-butylphenyl)indenyl)zirconiumdichloride

[0775]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-s-butylphenyl)indenyl)zirconiumdichloride

[0776]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0777]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0778]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0779]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0780]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0781]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0782]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0783]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0784]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0785]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-sec-butylphenyl)indenyl)zirconiumdichloride

[0786]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0787]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0788]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0789]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0790]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0791]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0792]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0793]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0794]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconium dichloride

[0795]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0796]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0797]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0798]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0799]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0800]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0801]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0802]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0803]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0804]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0805]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0806]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0807]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0808]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0809]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0810]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0811]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0812]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0813]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0814]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0815]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0816]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0817]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0818]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0819]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0820]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0821]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0822]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0823]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0824]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0825]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-n-pentylphenyl)indenyl)zirconiumdichloride

[0826]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0827]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0828]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0829]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0830]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0831]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0832]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0833]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0834]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0835]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0836]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0837]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0838]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0839]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0840]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0841]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0842]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0843]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0844]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0845]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-n-hexylphenyl)indenyl)zirconiumdichloride

[0846]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0847]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0848]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0849]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0850]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0851]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0852]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0853]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0854]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0855]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0856]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0857]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0858]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0859]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0860]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0861]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0862]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0863]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0864]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0865]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-cyclohexylphenyl)indenyl)zirconiumdichloride

[0866]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0867]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0868]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0869]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0870]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0871]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0872]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0873]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0874]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0875]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0876]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0877]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0878]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0879]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0880]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0881]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0882]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0883]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0884]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0885]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-trimethylsilylphenyl)indenyl)zirconiumdichloride

[0886]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0887]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0888]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0889]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0890]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0891]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0892]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0893]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0894]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0895]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0896]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0897]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0898]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0899]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0900]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0901]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0902]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0903]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0904]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0905]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0906]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-adamantylphenyl)indenyl)zirconiumdichloride

[0907]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-(4′-tris-(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0908]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-(4′-tris-(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0909]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-(4′-tris-(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0910]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0911]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0912]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0913]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0914]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0915]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0916]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0917]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-(4′-tris-(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0918]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-tris-(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0919]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-tris-(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0920]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0921]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0922]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-(4′-tris-(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0923]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-(4′-tris-(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0924]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-(4′-tris-(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0925]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0926]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-tris(trifluoromethyl)methylphenyl)indenyl)zirconiumdichloride

[0927]dimethylsilanediyl(2-methyl-4-azapentalene)(2-ethyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0928]dimethylsilanediyl(2-methyl-5,6-dihydro-4-azapentalene)(2-ethyl-4′-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0929]dimethylsilanediyl(2-methyl-4-azapentalene)(2-ethyl-4-(4′-tert-butylphenyl-tetrahydroindenyl)zirconiumdichloride

[0930]dimethylsilanediyl(2-methyl-5-azapentalene)(2-n-butyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0931]ethylidene(2-methyl-6-azapentalene)(2-methyl-4-(4′-tert-butyl-phenyl)indenyl)zirconiumdichloride

[0932]dimethylsilanediyl(2-methyl-N-trimethylsilyl-4-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0933]dimethylsilanediyl(2-methyl-N-tolyl-5-azapentalene)(2-n-propyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0934]dimethylgermanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0935]methylethylidene(2,5-dimethyl-4-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0936]dimethylsilanediyl(2,5-diisopropyl-6-azapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0937]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2,6-dimethyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0938]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(6′-tert-butylnaphthylindenyl)zirconiumdichloride

[0939]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-(6′-tert-butylanthracenylindenyl)zirconiumdichloride

[0940]dimethylsilanediyl(2-methyl-4-phosphapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0941]diphenylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0942]methylphenylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0943]methylidene(2,5-dimethyl-4-thiapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0944]dimethylmethylidene(2,5-dimethyl-6-thiapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0945]diphenylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0946]diphenylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride

[0947]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methylindenyl)-zirconiumdichloride

[0948]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methylindenyl)-zirconiumdichloride

[0949]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methylindenyl)-zirconiumdichloride

[0950]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-indenyl)zirconiumdichloride

[0951]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-indenyl)zirconiumdichloride

[0952]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-indenyl)zirconiumdichloride

[0953]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methylindenyl)-zirconiumdichloride

[0954]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methylindenyl)-zirconiumdichloride

[0955]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methylindenyl)zirconiumdichloride

[0956]dimethylsilanediyl(2-,5-dimethyl-N-phenyl-6-azapentalene)(2-methylindenyl)zirconiumdichloride

[0957]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methylindenyl)-zirconiumdichloride

[0958]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methylindenyl)-zirconiumdichloride

[0959]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methylindenyl)-zirconiumdichloride

[0960]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-indenyl)zirconiumdichloride

[0961]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-indenyl)zirconiumdichloride

[0962]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methylindenyl)-zirconiumdichloride

[0963]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methylindenyl)-zirconiumdichloride

[0964]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methylindenyl)-zirconiumdichloride

[0965]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methylindenyl)-zirconiumdichloride

[0966]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methylindenyl)-zirconiumdichloride

[0967] dimethylsilanediyl(2-methyl-4-azapentalene)(indenyl)zirconiumdichloride

[0968] dimethylsilanediyl(2-methyl-5-azapentalene)(indenyl)zirconiumdichloride

[0969] dimethylsilanediyl(2-methyl-6-azapentalene)(indenyl)zirconiumdichloride

[0970]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(indenyl)-zirconiumdichloride

[0971]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(indenyl)-zirconiumdichloride

[0972]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(indenyl)-zirconiumdichloride

[0973] dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(indenyl)zirconiumdichloride

[0974] dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(indenyl)zirconiumdichloride

[0975]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)-(indenyl)zirconiumdichloride

[0976] dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(indenyl)zirconium dichloride

[0977] dimethylsilanediyl(2-methyl-4-thiapentalene)(indenyl)zirconiumdichloride

[0978] dimethylsilanediyl(2-methyl-5-thiapentalene)(indenyl)zirconiumdichloride

[0979] dimethylsilanediyl(2-methyl-6-thiapentalene)(indenyl)zirconiumdichloride

[0980]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(indenyl)-zirconiumdichloride

[0981]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(indenyl)-zirconiumdichloride

[0982] dimethylsilanediyl(2-methyl-4-oxapentalene)(indenyl)zirconiumdichloride

[0983] dimethylsilanediyl(2-methyl-5-oxapentalene)(indenyl)zirconiumdichloride

[0984] dimethylsilanediyl(2-methyl-6-oxapentalene)(indenyl)zirconiumdichloride

[0985] dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(indenyl)zirconiumdichloride

[0986] dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(indenyl)zirconiumdichloride

[0987]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4-phenyl-indenyl)zirconiumdichloride

[0988]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4-phenyl-indenyl)zirconiumdichloride

[0989]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4-phenyl-indenyl)zirconiumdichloride

[0990]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4-phenylindenyl)zirconiumdichloride

[0991]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4-phenylindenyl)zirconiumdichloride

[0992]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4-phenylindenyl)zirconiumdichloride

[0993] dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4-phenylindenyl)zirconium dichloride

[0994] dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4-phenylindenyl)zirconium dichloride

[0995]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4-phenylindenyl)zirconiumdichloride

[0996]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4-phenylindenyl)zirconiumdichloride

[0997]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4-phenyl-indenyl)zirconiumdichloride

[0998]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4-phenyl-indenyl)zirconiumdichloride

[0999]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4-phenyl-indenyl)zirconiumdichloride

[1000]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4-phenylindenyl)zirconiumdichloride

[1001]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4-phenylindenyl)zirconiumdichloridedimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4-phenyl-indenyl)zirconiumdichloride

[1002]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4-phenyl-indenyl)zirconiumdichloride

[1003]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4-phenyl-indenyl)zirconiumdichloride

[1004]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4-phenylindenyl)zirconiumdichloride

[1005]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4-phenylindenyl)zirconiumdichloride

[1006]dimethylsilanediyl(2-methyl-4-azapentalene)(2-methyl-4,5-benzo-indenyl)zirconiumdichloride

[1007]dimethylsilanediyl(2-methyl-5-azapentalene)(2-methyl-4,5-benzo-indenyl)zirconiumdichloride

[1008]dimethylsilanediyl(2-methyl-6-azapentalene)(2-methyl-4,5-benzo-indenyl)zirconiumdichloride

[1009]dimethylsilanediyl(2-methyl-N-phenyl-4-azapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1010]dimethylsilanediyl(2-methyl-N-phenyl-5-azapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1011]dimethylsilanediyl(2-methyl-N-phenyl-6-azapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1012]dimethylsilanediyl(2,5-dimethyl-4-azapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1013]dimethylsilanediyl(2,5-dimethyl-6-azapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1014]dimethylsilanediyl(2,5-dimethyl-N-phenyl-4-azapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1015]dimethylsilanediyl(2,5-dimethyl-N-phenyl-6-azapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1016]dimethylsilanediyl(2-methyl-4-thiapentalene)(2-methyl-4,5-benzo-indenyl)zirconiumdichloride

[1017]dimethylsilanediyl(2-methyl-5-thiapentalene)(2-methyl-4,5-benzo-indenyl)zirconiumdichloride

[1018]dimethylsilanediyl(2-methyl-6-thiapentalene)(2-methyl-4,5-benzo-indenyl)zirconiumdichloride

[1019]dimethylsilanediyl(2,5-dimethyl-4-thiapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1020]dimethylsilanediyl(2,5-dimethyl-6-thiapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1021]dimethylsilanediyl(2-methyl-4-oxapentalene)(2-methyl-4,5-benzo-indenyl)zirconiumdichloride

[1022]dimethylsilanediyl(2-methyl-5-oxapentalene)(2-methyl-4,5-benzo-indenyl)zirconiumdichloride

[1023]dimethylsilanediyl(2-methyl-6-oxapentalene)(2-methyl-4,5-benzo-indenyl)zirconiumdichloride

[1024]dimethylsilanediyl(2,5-dimethyl-4-oxapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1025]dimethylsilanediyl(2,5-dimethyl-6-oxapentalene)(2-methyl-4,5-benzoindenyl)zirconiumdichloride

[1026] dimethylsilanediylbis(2-methyl-4-azapentalene)zirconiumdichloride

[1027] dimethylsilanediylbis(2-methyl-5-azapentalene)zirconiumdichloride

[1028] dimethylsilanediylbis(2-methyl-6-azapentalene)zirconiumdichloride

[1029] dimethylsilanediylbis(2-methyl-N-phenyl-4-azapentalene)zirconiumdichloride

[1030] dimethylsilanediylbis(2-methyl-N-phenyl-5-azapentalene)zirconiumdichloride

[1031] dimethylsilanediylbis(2-methyl-N-phenyl-6-azapentalene)zirconiumdichloride

[1032] dimethylsilanediylbis(2,5-dimethyl-4-azapentalene)zirconiumdichloride

[1033] dimethylsilanediylbis(2,5-dimethyl-6-azapentalene)zirconiumdichloride

[1034]dimethylsilanediylbis(2,5-dimethyl-N-phenyl-4-azapentalene)-zirconiumdichloride

[1035]dimethylsilanediylbis(2,5-dimethyl-N-phenyl-6-azapentalene)-zirconiumdichloride

[1036] dimethylsilanediylbis(2-methyl-4-thiapentalene)zirconiumdichloride

[1037] dimethylsilanediylbis(2-methyl-5-thiapentalene)zirconiumdichloride

[1038] dimethylsilanediylbis(2-methyl-6-thiapentalene)zirconiumdichloride

[1039] dimethylsilanediylbis(2,5-dimethyl-4-thiapentalene)zirconiumdichloride

[1040] dimethylsilanediylbis(2,5-dimethyl-6-thiapentalene)zirconiumdichloride

[1041] dimethylsilanediylbis(2-methyl-4-oxapentalene)zirconiumdichloride

[1042] dimethylsilanediylbis(2-methyl-5-oxapentalene)zirconiumdichloride

[1043] dimethylsilanediylbis(2-methyl-6-oxapentalene)zirconiumdichloride

[1044] dimethylsilanediylbis(2,5-dimethyl-4-oxapentalene)zirconiumdichloride

[1045] dimethylsilanediylbis(2,5-dimethyl-6-oxapentalene)zirconiumdichloride.

[1046] Examples of further novel metallocenes are those of the abovelist in which the “ . . . zirconium dichloride” is replaced by thegroups

[1047] zirconium monochloride mono(2,4-di-tert-butylphenoxide)

[1048] zirconium monochloride mono(2,6-di-tert-butylphenoxide)

[1049] zirconium monochloride mono(3,5-di-tert-butylphenoxide)

[1050] zirconium monochloride mono(2,6-di-sec-butylphenoxide)

[1051] zirconium monochloride mono(2,4-dimethylphenoxide)

[1052] zirconium monochloride mono(2,3-dimethylphenoxide)

[1053] zirconium monochloride mono(2,5-dimethylphenoxide)

[1054] zirconium monochloride mono(2,6-dimethylphenoxide)

[1055] zirconium monochloride mono(3,4-dimethylphenoxide)

[1056] zirconium monochloride mono(3,5-dimethylphenoxide)

[1057] zirconium monochloromonophenoxide

[1058] zirconium monochloride mono(2-methylphenoxide)

[1059] zirconium monochloride mono(3-methylphenoxide)

[1060] zirconium monochloride mono(4-methylphenoxide)

[1061] zirconium monochloride mono(2-ethylphenoxide)

[1062] zirconium monochloride mono(3-ethylphenoxide)

[1063] zirconium monochloride mono(4-ethylphenoxide)

[1064] zirconium monochloride mono(2-sec-butylphenoxide)

[1065] zirconium monochloride mono(2-tert-butylphenoxide)

[1066] zirconium monochloride mono(3-tert-butylphenoxide)

[1067] zirconium monochloride mono(4-sec-butylphenoxide)

[1068] zirconium monochloride mono(4-tert-butylphenoxide)

[1069] zirconium monochloride mono(2-isopropyl-5-methylphenoxide)

[1070] zirconium monochloride mono(4-isopropyl-3-methylphenoxide)

[1071] zirconium monochloride mono(5-isopropyl-2-methylphenoxide)

[1072] zirconium monochloride mono(5-isopropyl-3-methylphenoxide)

[1073] zirconium monochloride mono(2,4-bis(2-methyl-2-butyl)phenoxide)

[1074] zirconium monochloride mono(2,6-di-tert-butyl-4-methylphenoxide)

[1075] zirconium monochloride mono(2,6-nonylphenoxide)

[1076] zirconium monochloride mono(4-naphthoxide)

[1077] zirconium monochloride mono(2-naphthoxide)

[1078] zirconium monochloride mono(2-phenylphenoxide)

[1079] zirconium monochloride mono(tert-butoxide)

[1080] zirconium monochloride mono(N-methylanilide)

[1081] zirconium monochloride mono(2-tert-butylanilide)

[1082] zirconium monochloride mono(tert-butylamide)

[1083] zirconium monochloride mono(di-isopropylamide)

[1084] zirconium monochloride monomethyl

[1085] zirconium monochloride monobenzyl

[1086] zirconium monochloride mononeopentyl.

[1087] Also preferred are the corresponding dimethylzirconium compounds,the corresponding zirconium-η⁴-butadiene compounds and also thecorresponding compounds having 1,2-(1-methylethanediyl),1,2-(1,1-dimethylethanediyl) and 1,2-(1,2-dimethylethanediyl) bridges.

[1088] The catalyst system of the present invention comprises at leastone Lewis base B) of the formula (IV), usually an organometallictransition metal compound which can be reacted in any desiredstoichiometric ratio with compounds of the formula (I), (II) or (III).

[1089] The radicals R²⁰ in formula (IV) may be identical or differentand are each a halogen atom, a hydrogen atom, a C₁-C₄₀ group, preferablyC₁-C₂₀-alkyl, C₁-C₂₀-haloalkyl, C₆-C₂₀-aryl, C₆-C₂₀-haloaryl,C₇-C₄₀-arylalkyl, C₇-C₄₀-haloarylalkyl, C₇-C₄₀-alkylaryl orC₇-C₄₀-haloalkylaryl. R²⁰ are preferably C₁-C₆-alkyl groups,particularly preferably C₁-C₄-alkyl groups.

[1090] The catalyst system of the present invention is prepared using amolar ratio of boron from the compounds of the formulae (I) and/or (II)to M² from the compounds of the formula (III) of from 0.01 to 10,000.Preference is given to a molar ratio of from 0.1 to 1000, veryparticularly preferably from 1 to 100. In addition, a compound of theformula (IV) may be added in a molar ratio of Al:M² of from 0.01 to10,000. Preference is given to a molar ratio of from 0.1 to 1000, veryparticularly preferably from 1 to 100.

[1091] The compounds may be brought into contact with one another in anyconceivable combination. One possible procedure is to dissolve orsuspend an organometallic transition metal compound of the formula (III)in an aliphatic or aromatic solvent such as toluene, heptane,tetrahydrofuran or diethyl ether. A compound of the formula (IV) indissolved or suspended form is then added. The reaction time is from 1minute to 24 hours, preferably from 5 minutes to 120 minutes. Thereaction temperature is from −10° C. to +200° C., preferably from 0° C.to 50° C. Subsequently, an organoboron compound of the formula (I) or(II) either as such or in dissolved or in suspended form is added. Thereaction time is from 1 minute to 24 hours, preferably from 5 minutes to120 minutes. The reaction temperature is from −10° C. to +200° C.,preferably from 0° C. to 50° C. The individual components can also beintroduced into the polymerization vessel in succession, in any order.

[1092] If desired, the catalyst system of the present invention may alsobe supported. For this purpose, the catalyst system of the presentinvention can be reacted with a support component:

[1093] The catalyst system of the present invention further comprises atleast one support component C) which may be any organic or inorganic,inert solid, in particular a porous support such as talc, inorganicoxides and finely divided polymer powders (e.g. polyolefins).

[1094] Suitable inorganic oxides are those of elements of groups 2, 3,4, 5, 13, 14, 15 and 16 of the Periodic Table of the Elements. Examplesof oxides preferred as supports include silicon dioxide, aluminum oxideand also mixed oxides and/or Mg/Al mixed oxide of the two elements andthe corresponding oxide mixtures. Other inorganic oxides which can beused alone or in combination with the last-named preferred oxidicsupports are, for example, MgO, ZrO₂, TiO₂ or B₂O₃, to name only a few.

[1095] The support materials used have a specific surface area in therange from 10 to 1000 m²/g, a pore volume in the range from 0.1 to 5ml/g and a mean particle size of from 1 to 500 μm. Preference is givento supports having a specific surface area in the range from 50 to 500m²/g, a pore volume in the range from 0.5 to 3.5 ml/g and a meanparticle size in the range from 5 to 350 μm. Particular preference isgiven to supports having a specific surface area in the range from 200to 400 m²/g, a pore volume in the range from 0.8 to 3.0 ml/g and a meanparticle size of from 10 to 200 μm.

[1096] If the support material used naturally has a low moisture contentor residual solvent content, dehydration or drying before use can beomitted. If this is not the case, as when silica gel is used as supportmaterial, dehydration or drying is advisable. Thermal dehydration ordrying of the support material can be carried out under reduced pressurewith simultaneous inert gas blanketing (e.g. nitrogen). The dryingtemperature is in the range from 100 to 1000° C., preferably from 200 to800° C. In this case, the pressure is not critical. The duration of thedrying process can be from 1 to 24 hours. Shorter or longer drying timesare possible, provided that equilibrium with the hydroxyl groups on thesupport surface can be established under the conditions selected, whichnormally requires from 4 to 8 hours.

[1097] Dehydration or drying of the support material can also be carriedout by chemical means, by reacting the adsorbed water and the hydroxylgroups on the surface with suitable passivating agents. Reaction withthe passivating reagent enables the hydroxyl groups to be convertedcompletely or partially into a form which leads to no negativeinteraction with the catalytically active centers. Suitable passivatingagents are, for example, silicon halides and silanes, e.g. silicontetrachloride, chlorotrimethylsilane, dimethylaminotrichlorosilane ororganometallic compounds of aluminum, boron and magnesium, for exampletrimethylaluminum, triethylaluminum, triisobutylaluminum,triethylborane, dibutylmagnesium. Chemical dehydration or passivation ofthe support material is carried out, for example, by reacting asuspension of the support material in a suitable solvent with thepassivating reagent in pure form or as a solution in a suitable solventwith exclusion of air and moisture. Suitable solvents are, for example,aliphatic or aromatic hydrocarbons such as pentane, hexane, heptane,toluene and xylene. Passivation is carried out at from 25° C. to 120°C., preferably from 50° C. to 70° C. Higher and lower temperatures arepossible. The reaction time is from 30 minutes to 20 hours, preferablyfrom 1 to 5 hours. After the chemical dehydration is complete, thesupport material can be isolated by filtration under inert conditions,washed one or more times with suitable inert solvents as described aboveand subsequently dried in a stream of inert gas or under reducedpressure.

[1098] Organic support materials such as finely divided polyolefinpowders (e.g. polyethylene, polypropylene or polystyrene) can also beused and should likewise be freed of adhering moisture, solvent residuesor other impurities by appropriate purification and drying operationsbefore use.

[1099] To apply the catalyst system of the present invention to asupport, the catalyst mixture prepared as above is mixed with adehydrated or passivated support material, the solvent is removed andthe resulting supported metallocene catalyst system is dried to ensurethat the solvent is completely or largely removed from the pores of thesupport material. The supported catalyst is obtained as a free-flowingpowder.

[1100] The present invention also provides a process for preparing apolyolefin by polymerization of one or more olefins in the presence ofthe catalyst system of the present invention comprising at least onetransition metal component of the formula (IV). For the purposes of thepresent invention, the term polymerization refers to bothhomopolymerization and copolymerization.

[1101] Preference is given to polymerizing olefins of the formulaR_(m)—CH═CH—R_(n), where R_(m) and R_(n) are identical or different andare each a hydrogen atom or a radical having from 1 to 20 carbon atoms,in particular from 1 to 10 carbon atoms, and R_(m) and R_(n) may,together with the atoms connecting them, form one or more rings.

[1102] Examples of such olefins are 1-olefins having 2-40 carbon atoms,preferably from 2 to 10 carbon atoms, e.g. ethene, propene, 1-butene,1-pentene, 1-hexene, 4-methyl-1-pentene or 1-octene, styrene, dienessuch as 1,3-butadiene, 1,4-hexadiene, vinylnorbornene, norbornadiene,ethylnorbornadiene and cyclic olefins such as norbornene,tetracyclododecene or methylnorbornene. In the process of the presentinvention, preference is given to homopolymerizing propene or ethene orcopolymerizing propene with ethene and/or with one or more 1-olefinshaving from 4 to 20 carbon atoms, e.g. hexene, and/or one or more dieneshaving from 4 to 20 carbon atoms, e.g. 1,4-butadiene, norbornadiene,ethylidenenorbornene or ethylnorbornene. Examples of such copolymers areethene-propene copolymers and ethene-propene-1,4-hexadiene terpolymers.

[1103] The polymerization is carried out at from −60° C. to 300° C.,preferably from 50° C. to 200° C., very particularly preferably at 50°C.-80° C. The pressure is from 0.5 to 2000 bar, preferably from 5 to 64bar.

[1104] The polymerization can be carried out in solution, in bulk, insuspension or in the gas phase, continuously or batchwise, in one ormore stages.

[1105] The supported catalyst system can either be formed directly inthe polymerization system or it can be resuspended as powder or whilestill moist with solvent and metered as a suspension in an inertsuspension medium into the polymerization system.

[1106] A prepolymerization can be carried out using the catalyst systemof the present invention. The prepolymerization is preferably carriedout using the (or one of the) olefin(s) used in the polymerization.

[1107] To prepare olefin polymers having a broad molecular weightdistribution, preference is given to using catalyst systems comprisingtwo or more different transition metal compounds, e.g. etallocenes,and/or two or more different cocatalytically active organoelementcompounds.

[1108] To remove catalyst poisons which may be present in the olefin,purification using an aluminum alkyl, for example trimethylaluminum,triethylaluminum or triisobutylaluminum, is advantageous. Thispurification can either be carried out in the polymerization systemitself or the olefin is brought into contact with the Al compound andsubsequently separated off again before introduction into thepolymerization system.

[1109] As molar mass regulator and/or to increase the activity, hydrogenis added if necessary. The total pressure in the polymerization systemis from 0.5 to 2500 bar, preferably from 2 to 1500 bar.

[1110] The catalyst system of the present invention is employed in aconcentration, based on the transition metal, of preferably from 10⁻³ to10⁻⁸ mol, preferably from 10⁻⁴ to 10⁻⁷ mol, of transition metal per dm³of solvent or per dm³ of reactor volume.

[1111] Suitable solvents for preparing both the supported chemicalcompound of the present invention and the catalyst system of the presentinvention are aliphatic or aromatic solvents, for example hexane ortoluene, ether solvents, for example tetrahydrofuran or diethyl ether,or halogenated hydrocarbons, for example methylene chloride, orhalogenated aromatic hydrocarbons, for example o-dichlorobenzene.

[1112] Before addition of the catalyst system of the present inventionor before activation of the catalyst system of the present invention inthe polymerization system, it is additionally possible to introduce analkylaluminum compound such as trimethylaluminum, triethylaluminum,triisobutylaluminum, trioctylaluminum or isoprenylaluminum into thereactor to make the polymerization system inert (for example to removecatalyst poisons present in the olefin). This is added to thepolymerization system in a concentration of from 200 to 0.001 mmol of Alper kg of reactor contents. Preference is given to usingtriisobutylaluminum and triethylaluminum in a concentration of from 10to 0.01 mmol of Al per kg of reactor contents, which makes it possibleto choose a small Al/Ml molar ratio in the synthesis of a supportedcatalyst system.

[1113] Furthermore, an additive such as an antistatic can be used in theprocess of the present invention, for example to improve the particlemorphology of the olefin polymer. In general, all antistatics which aresuitable for polymerization can be used. Examples of such antistaticsare salt mixtures of calcium salts of Medialan acid and chromium saltsof N-stearylanthranilic acid, which are described in DE-A-3,543,360.Further suitable antistatics are, for example, isopropanol,C₁₂-C₂₂-fatty acid soaps of alkali metals or alkaline earth metals,salts of sulfonic esters, esters of polyethylene glycols with fattyacids, polyoxyethylene alkyl ethers, etc. An overview of antistatics isgiven in EP-A-0,107,127.

[1114] A mixture of a metal salt of Medialan acid, a metal salt ofanthranilic acid and a polyamine can also be used as antistatic, asdescribed in EP-A-0,636,636. Commercially available products such asStadis® 450 from DuPont, namely a mixture of toluene, isopropanol,dodecylbenzenesulfonic acid, a polyamine, a copolymer of 1-decene andSO₂ and also 1-decene or ASA®-3 from Shell and Atmer 163 from ICI canlikewise be used.

[1115] The antistatic is preferably used as a solution; in the preferredcase of isopropanol, Stadis® 450 and Atmer 163, preference is given tousing from 1 to 50% by weight of this solution, preferably from 5 to 25%by weight, based on the mass of the supported catalyst used (supporttogether with covalently bound compound capable of forming metalloceniumions and one or more metallocene compounds, e.g. of the formula X).However, the amounts of antistatic required may vary within a wide rangedepending on the type of antistatic used.

[1116] The actual polymerization is preferably carried out in liquidmonomers (bulk) or in the gas phase.

[1117] The antistatic can be metered into the polymerization at anydesired point in time. For example, a preferred procedure is toresuspend the supported catalyst system in an organic solvent,preferably an alkane such as heptane or isododecane. It is subsequentlyintroduced while stirring into the polymerization autoclave. Theantistatic is then metered in. The polymerization is carried out at from0 to 100° C. A further preferred procedure is to meter the antistaticinto the polymerization autoclave before addition of the supportedcatalyst system. The resuspended supported catalyst system issubsequently metered in while stirring at from 0 to 100° C. Thepolymerization time can be in the range from 0.1 to 24 hours. Preferenceis given to a polymerization time in the range from 0.1 to 5 hours.

[1118] In the above-described process, no deposits on the reactor areformed, no agglomerates are formed and the productivity of the catalystsystem used is high. The polymers prepared using the process of thepresent invention have a narrow molecular weight distribution and a goodparticle morphology.

[1119] The polymers prepared using the catalyst system of the presentinvention have a uniform particle morphology and contain no fines. Inthe polymerization using the catalyst system of the present invention,no deposits or cake material occur.

[1120] The catalyst system of the present invention gives polymers, e.g.polypropylene, having extraordinarily high stereospecificity andregiospecificity.

[1121] The isotactic polypropylene which has been prepared using thecatalyst system of the present invention has a proportion of2-1-inserted propene units RI of <0.5% at a triad tacticity TT of >98.0%and a melting point of >156° C. The M_(w)/M_(n) of the polypropyleneprepared according to the present invention is from 2.5 to 3.5.

[1122] The novel compounds of the formulae (I) and (II) and also thecatalyst systems derived therefrom are notable for the fact that thestarting materials are not carcinogenic, teratogenic or extremely toxic.In addition, the good solubility of the ammonium tetraphenylboratesdescribed leads to virtually completely reacted catalyst systems. Thiscriterion leads to considerable cost savings and thus to good commercialutilization.

[1123] The polymers prepared by the process of the present inventionare, in particular, suitable for producing strong, hard and rigid shapedbodies such as fibers, filaments, injection-molded parts, films, platesor large hollow bodies (e.g. pipes).

[1124] The preparation of a possible catalyst system which has beendescribed above in general terms can specifically be carried outaccording to the following sequence:

[1125] In a first Step A, an inorganic support material as describedunder C is reacted with a metal compound of the formula (IV). The metalcompound of the formula (IV) is preferably added as a solution to asuspension of the support. Solvents or suspension media used are thosedescribed under B. The amount of metal compounds of the formula (IV) canvary within wide limits; the minimum amount depends on the number ofhydroxyl groups on the support. The temperature, reaction times andpressures are not critical per se; preference is given to thetemperatures and reaction times described under B. It has been found tobe useful to remove the excess metal compound of the formula (IV) afterthe pretreatment of the support by washing, for example usinghydrocarbons such as pentane, hexane, ethylbenzene or heptane, and todry the support.

[1126] This material is then reacted in a further Step B with a metalcomplex of the formula (III) and a compound capable of formingmetallocenium ions. It is also possible to use mixtures of variousmetallocene complexes.

[1127] As suitable compounds capable of forming metallocenium ions, useis made of the novel compounds of the formula (I) or (II). Theconditions for the reaction of the metallocene complex with the compoundof the formula (I) capable of forming metallocenium ions are notcritical per se; preference is given to carrying out the reaction insolution, where suitable solvents are, in particular, hydrocarbons,preferably aromatic hydrocarbons such as toluene.

[1128] The material prepared as described in A is then added thereto. Anamount of from 0.1 to 10% by weight of metallocene complexes, based onthe inorganic support material, is particularly useful. The conditionsfor this reaction are likewise not critical; a temperature in the rangefrom 20 to 80° C. and reaction times in the range from 0.1 to 20 hourshave-been- found to-be-particularly useful.

[1129] In a further step C), namely the activation step, the materialobtained as described in B) is reacted with a metal compound of theformula X. This activation can be carried out at any desired point intime, i.e. before, during or after the material obtained as described inB) is metered into the reactor. The activation is preferably carried outafter the material obtained as described in B) has been metered into thereactor.

[1130] The activation compounds of the present invention have, inparticular, a high activity, they can be stored for a long time, theyare not pyrophoric and are readily soluble.

[1131] General procedures: preparation and handling of the compoundswere carried out in the absence of air and moisture under argon (Schlenktechnique). All solvents required were dried before use by boiling oversuitable desiccants for a number of hours and subsequent distillationunder argon. To characterize the compounds, samples were taken from theindividual reaction mixtures and dried in an oil pump vacuum.

[1132] The following examples serve to illustrate the invention.

EXAMPLE 1 Synthesis of N,N-dimethylcyclohexylammonium hydrochloride

[1133] 15.08 g of N,N-dimethylcyclohexylamine and 700 ml of heptane wereplaced under argon in a 500 ml three-necked flask fitted with internalthermometer and gas inlet stopcock. HCl gas from a gas generationapparatus was passed into this reaction mixture for 1 hour. TheN,N-dimethylcyclohexylammonium hydrochloride formed was separated offvia a G4 frit, washed with 100 ml of heptane and dried in an oil pumpvacuum. 19.0 g (98%) of the desired product were isolated.

EXAMPLE 2 Synthesis of N,N-dimethylcyclohexylammoniumtetrakis(pentafluorophenyl)borate

[1134] In a 1000 ml four-necked flask fitted with internal thermometer,stirrer and metal condenser, a solution of 20.87 g ofN,N-dimethylcyclohexylammonium hydrochloride dissolved in 300 ml ofdichloromethane was added dropwise at room temperature under argon to111.2 g of lithium tetrakispentafluorophenylborate etherate. Thereaction mixture was subsequently stirred for 4 hours. The insolublelithium chloride was separated off via a G4 frit and washed twice with atotal of 100 ml of dichloromethane. 200 ml of heptane were added to thedichloromethane of the filtrate and the dichloromethane was carefullyremoved at 35° C. and 450 mbar on a rotary evaporator. The precipitateformed was isolated via a G3 frit and washed twice with a total of 50 mlof heptane. The brownish crystalline product was dried in an oil pumpvacuum and 72.5 g (74%) of product were isolated (purity by MMR: about90%).

[1135]¹⁹F-NMR in CDCl₃: −133.2 ppm (m, 8F), −163.3 ppm (m, 4F), −167.3ppm (m, 8F)

EXAMPLE 3 Synthesis of N,N-dimethylbenzylammmonium hydrochloride

[1136] 12.12 g of N,N-dimethylbenzylamine and 400 ml of heptane wereplaced under argon in a 500 ml three-necked flask fitted with internalthermometer and gas inlet stopcock. HCl gas from a gas generationapparatus was passed into this reaction mixture for 1 hour. TheN,N-dimethylbenzylammonium hydrochloride formed was separated off via aG4 frit, washed with 100 ml of heptane and dried in an oil pump vacuum.13.14 g (85%) of the desired product were isolated.

EXAMPLE 4 Synthesis of N,N-dimethylbenzylammoniumtetrakis-(pentafluorophenyl)borate

[1137] In a 1000 ml four-necked flask fitted with internal thermometer,stirrer and metal condenser, a solution of 7.75 g ofN,N-dimethylbenzylammonium hydrochloride dissolved in 116 ml ofdichloromethane was added dropwise at room temperature under argon to39.4 g of lithium tetrakispentafluorophenylborate etherate. The reactionmixture was subsequently stirred for 4 hours. The insoluble lithiumchloride was separated off via a G4 frit and washed twice with a totalof 100 ml [lacuna]. 200 ml of heptane were added to the dichloromethaneof the filtrate and the dichloromethane was carefully removed at 35° C.and 450 mbar on a rotary evaporator. The precipitate formed was isolatedvia a G3 frit and washed twice with a total of 25 ml of heptane. Thebrownish crystalline product was dried in an oil pump vacuum and 34.51 g(93%) of product were isolated (purity by NMR: about 90%).

[1138]¹⁹F-NMR in CDCl₃: −133.1 ppm (m, 8F), −163.3 ppm (m, 4F), −167.4ppm (m, 8F)

EXAMPLE 5 Synthesis of N,N-dimethylisopropylammmonium hydrochloride

[1139] 6 g of N,N-dimethylisopropylamine and 300 ml of heptane wereplaced under argon in a 500 ml three-necked flask fitted with internalthermometer and gas inlet stopcock. HCl gas from a gas generationapparatus was passed into this reaction mixture for 1 hour. TheN,N-dimethylbenzylammonium hydrochloride formed was separated off via aG4 frit, washed with 100 ml of heptane and dried in an oil pump vacuum.7.4 g (87%) of the desired product were isolated.

EXAMPLE 6 Synthesis of N,N-diisopropylbenzylammoniumtetrakis(pentafluorophenyl)borate

[1140] In a 500 ml four-necked flask fitted with internal thermometer,stirrer and metal condenser, a solution of 7.4 g of N,N-dibenzylammoniumhydrochloride dissolved in 116 ml of dichloromethane was added dropwiseat room temperature under argon to 52.1 g of lithiumtetrakispentafluorophenylborate etherate. The reaction mixture wassubsequently stirred for 4 hours. The insoluble lithium chloride wasseparated off via a G4 frit and washed twice with a total of 100 ml ofdichloromethane. 200 ml of heptane were added to the dichloromethane ofthe filtrate and the dichloromethane was carefully removed at 35° C. and450 mbar on a rotary evaporator. The precipitate formed was isolated viaa G3 frit and washed twice with a total of 25 ml of heptane. Thebrownish crystalline product was dried in an oil pump vacuum and 44.9 g(93%) of product were isolated (purity by NMR: about 90%).

[1141]¹⁹F-NMR in CDCl₃: −133.1 ppm (m, 8F), −163.3 ppm (m, 4F), −167.4ppm (m, 8F)

EXAMPLE 7 Preparation of a Catalyst

[1142] a) Preparation of the Support Material

[1143] 500 g of silica gel (type MS 948, from W. R. Grace, porevolume=1.6 ml/g, baked at 180° C. and about 2 mbar for 8 hours) weresuspended in 4 l of dry heptane under an N₂ atmosphere. 2 l oftriisobutylaluminum (2 molar in heptane, from Witco) were added at roomtemperature at such a rate that the temperature of the suspension didnot exceed 30° C. The mixture was subsequently stirred for another 2hours at room temperature, filtered and the filter cake was washed with3 l of heptane. The solid was subsequently dried under reduced pressure.

[1144] b) Loading with Metallocene Complex

[1145] 7.9 g of the deactivated silica gel prepared as described undera) were placed in a vessel which had previously been made inert andsuspended in 40 ml of dry toluene. While stirring, 258 mg ofdimethylcyclohexylammonium tetrakispentafluorophenylborate and 201 mg ofrac-dimethylsilanediylbis(2-methyl-4-phenylindenyl)-zirconium dichloridewere added to this suspension and the mixture was heated to 80° C. Aftera reaction time of 1.5 hours, the solvent was distilled off underreduced pressure. This gave a deep violet, free-flowing catalyst powder.

EXAMPLE 8

[1146] The procedure of Example 7 was repeated using 235 mg ofdimethylsilanediylbis(2-methyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride.

EXAMPLE 9

[1147] The procedure of Example 7 was repeated using 237 mg ofdimethylsilanediylbis(2-ethyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride.

EXAMPLE 10

[1148] The procedure of Example 7 was repeated using 238 mg ofdimethylsilanediylbis(2-n-propyl-4-(4′-tert-butylphenyl)indenyl)-zirconiumdichloride.

EXAMPLE 11

[1149] The procedure of Example 7 was repeated using 236 mg ofdimethylsilanediylbis(2-methyl-4-naphthylindenyl)zirconium dichloride.

EXAMPLE 12

[1150] The procedure of Example 7 was repeated using 236 mg ofdimethylsilanediyl(2-methyl-4-(4′-tert-butylphenyl)indenyl)-(2-isopropyl-4-(4′-tert-butylphenyl)indenyl)zirconiumdichloride.

EXAMPLE 13 Propylene Polymerization

[1151] 0.6 l of liquid propylene were in each case placed at roomtemperature in a 1 l steel autoclave which had been flushed withnitrogen. 4 mmol of triisobutylaluminum (2 molar solution in heptane)were added via a lock. After stirring for 5 minutes, 50 mg of thesupported catalyst were likewise added via the lock and the autoclavewas heated to 60° C. The polymer was obtained in the form of afree-flowing powder.

[1152] The following results were achieved: TABLE 1 Productivity g ofPP/g of MW Tm* Catalyst catalyst (g/mol) M_(w)/M_(n) (° C.) Example 74800 801000 2.7 156.1 Example 8 3700 453000 3.7 158.2 Example 9 3600368000 2.2 160.5 Example 10 700 390000 2.7 159.1 Example 11 1800 8680002.3 155.0 Example 12 2500 164000 1.9 155.5 #its maximum.

We claim:
 1. A chemical compound of the formula I,

where M¹ is boron, x is 4, y is 2 and A is nitrogen R¹ are identical ordifferent and are each C₆-C₄₀-haloaryl, C₆-C₄₀-aryloxy,C₇-C₄₀-arylalkyl, C₇-C₄₀-haloarylalkyl, C₇-C₄₀-haloalkylaryl orC₄-C₄₀-cycloalkyl, R² are identical or different and are eachC₁-C₆-alkyl, R³ is C₃-C₉-cycloalkyl which may be substituted byC₁-C₂₀-alkyl, C₁-C₂₀-haloalkyl, C₁-C₁₀-alkoxy, C₆-C₄₀-haloaryl,C₇-C₄₀-alkylaryl, C₇-C₄₀-arylalkyl, C₇-C₄₀-haloarylalkyl orC₇-C₄₀-haloalkylaryl, or is C₇-C₂₀-alkylaryl and R⁴ is a hydrogen atom.2. A compound as claimed in claim 1, wherein R³ is C₃-C₉-cycloalkyl orC₇-alkylaryl.
 3. A compound of the formula I as claimed in claim 1 or 2which is N,N-dimethylcyclohexylammoniumtetrakis(pentafluorophenyl)borate, N,N-diethylcyclohexylammoniumtetrakis(pentafluorophenyl)borate, N,N-diisopropylcyclohexylammoniumtetrakis(pentafluorophenyl)borate, N,N-diethylbenzylammoniumtetrakis(pentafluorophenyl)borate, N,N-diisopropylbenzylammoniumtetrakis(pentafluorophenyl)borate or N,N-dimethylbenzylammoniumtetrakis(pentafluorophenyl)borate.
 4. The use of one or more compoundsas claimed in any of claims 1 to 3 for preparing a catalyst system forthe polymerization of one or more olefins.
 5. A catalyst systemcomprising A) at least one organometallic transition metal compound, B)at least one Lewis base, C) at least one support component and D) atleast one compound as claimed in any of claims 1 to
 3. 6. A catalystsystem as claimed in claim 5, wherein at least one metallocene compoundis used as organometallic transition metal compound.
 7. The use of acatalyst system as claimed in claim 5 or 6 for preparing a polyolefin.8. A process for preparing a polyolefin by polymerization of one or moreolefins in the presence of a catalyst system as claimed in claim 5 or 6.